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GIANNELLA, CHRIS R., RANSOM WINDER, and BRANDON WILSON. "(Un/Semi-)supervised SMS text message SPAM detection." Natural Language Engineering 21, no. 4 (2014): 553–67. http://dx.doi.org/10.1017/s1351324914000102.
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AbstractWe address the problem of unsupervised and semi-supervised SMS (Short Message Service) text message SPAM detection. We develop a content-based Bayesian classification approach which is a modest extension of the technique discussed by Resnik and Hardisty in 2010. The approach assumes that the bodies of the SMS messages arise from a probabilistic generative model and estimates the model parameters by Gibbs sampling using an unlabeled, or partially labeled, SMS training message corpus. The approach classifies new SMS messages as SPAM or HAM (non-SPAM) by zero-thresholding their logit estimates. We tested the approach on a publicly available SMS corpora collected from the UK. Used in semi-supervised fashion, the approach clearly outperformed a competing algorithm, Semi-Boost. Used in unsupervised fashion, the approach outperformed a fully supervised classifier, an SVM (Support Vector Machine), when the number of training messages used by the SVM was small and performed comparably otherwise. We believe the approach works well and is a useful tool for SMS SPAM detection.
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Panckhurst, Rachel, and Claudine Moïse. "French text messages." SMS Communication: A linguistic approach 35, no. 2 (2012): 289–317. http://dx.doi.org/10.1075/li.35.2.09pan.
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Over a three-month period (spanning 15 September to 15 December 2011), over 90,000 authentic text messages in French were collected by a group of academics in the Languedoc-Roussillon region of France. This paper retraces the organisation of the data collection, the elaboration of the sociolinguistic questionnaire that donors were invited to fill out, text message data processing procedures and preliminary results. A shift from individual “isolated” text messages to “conversational” SMS exchanges is then studied, in preparation for a new SMS conversational data collection which is due to take place in the near future. This whole process is important for understanding in-depth interactional practices within contemporary digital textuality and should provide insight for pluri-disciplinary approaches.
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MacPherson, Megan, Kaela Cranston, Cara Johnston, Sean Locke, and Mary E. Jung. "Evaluation and Refinement of a Bank of SMS Text Messages to Promote Behavior Change Adherence Following a Diabetes Prevention Program: Survey Study." JMIR Formative Research 5, no. 8 (2021): e28163. http://dx.doi.org/10.2196/28163.
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Background SMS text messaging is a low-cost and far-reaching modality that can be used to augment existing diabetes prevention programs and improve long-term diet and exercise behavior change adherence. To date, little research has been published regarding the process of SMS text message content development. Understanding how interventions are developed is necessary to evaluate their evidence base and to guide the implementation of effective and scalable mobile health interventions in public health initiatives and in future research. Objective This study aims to describe the development and refinement of a bank of SMS text messages targeting diet and exercise behavior change to be implemented following a diabetes prevention program. Methods A bank of 124 theory-based SMS text messages was developed using the Behaviour Change Wheel and linked to active intervention components (behavior change techniques [BCTs]). The Behaviour Change Wheel is a theory-based framework that provides structure to intervention development and can guide the use of evidence-based practices in behavior change interventions. Once the messages were written, 18 individuals who either participated in a diabetes prevention program or were a diabetes prevention coach evaluated the messages on their clarity, utility, and relevance via survey using a 5-point Likert scale. Messages were refined according to participant feedback and recoded to obtain an accurate representation of BCTs in the final bank. Results 76/124 (61.3%) messages were edited, 4/124 (3.2%) were added, and 8/124 (6.5%) were removed based on participant scores and feedback. Of the edited messages, 43/76 (57%) received minor word choice and grammar alterations while retaining their original BCT code; the remaining 43% (33/76, plus the 4 newly written messages) were recoded by a reviewer trained in BCT identification. Conclusions This study outlines the process used to develop and refine a bank of SMS text messages to be implemented following a diabetes prevention program. This resulted in a bank of 120 theory-based, user-informed SMS text messages that were overall deemed clear, useful, and relevant by both individuals who will be receiving and delivering them. This formative development process can be used as a blueprint in future SMS text messaging development to ensure that message content is representative of the evidence base and is also grounded in theory and evaluated by key knowledge users.
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Nagwani, Naresh Kumar, and Aakanksha Sharaff. "SMS spam filtering and thread identification using bi-level text classification and clustering techniques." Journal of Information Science 43, no. 1 (2016): 75–87. http://dx.doi.org/10.1177/0165551515616310.
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SMS spam detection is an important task where spam SMS messages are identified and filtered. As greater numbers of SMS messages are communicated every day, it is very difficult for a user to remember and correlate the newer SMS messages received in context to previously received SMS. SMS threads provide a solution to this problem. In this work the problem of SMS spam detection and thread identification is discussed and a state of the art clustering-based algorithm is presented. The work is planned in two stages. In the first stage the binary classification technique is applied to categorize SMS messages into two categories namely, spam and non-spam SMS; then, in the second stage, SMS clusters are created for non-spam SMS messages using non-negative matrix factorization and K-means clustering techniques. A threading-based similarity feature, that is, time between consecutive communications, is described for the identification of SMS threads, and the impact of the time threshold in thread identification is also analysed experimentally. Performance parameters like accuracy, precision, recall and F-measure are also evaluated. The SMS threads identified in this proposed work can be used in applications like SMS thread summarization, SMS folder classification and other SMS management-related tasks.
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Menacho, Luis A., Magaly M. Blas, Isaac E. Alva, and E. Roberto Orellana. "Short Text Messages to Motivate HIV Testing Among Men Who have Sex with Men: A Qualitative Study in Lima, Peru." Open AIDS Journal 7, no. 1 (2013): 1–6. http://dx.doi.org/10.2174/1874613601307010001.
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Objective: The objective of this study is to identify features and content that short message service (SMS) should have in order to motivate HIV testing among men who have sex with men (MSM) in Lima, Peru. Methods: From October, 2010 to February, 2011, we conducted focus groups at two stages; six focus groups were conducted to explore and identify SMS content and features and two additional focus groups were conducted to tailor SMS content. The text messages were elaborated within the theoretical framework of the Information-Motivation-Behavioral Skills model and the Social Support Theory. Results: A total of 62 individuals participated in the focus groups. The mean age of participants was 28 years (range 18-39). We identified important features and content items needed for the successful delivery of text messages, including: a) the use of neutral and coded language; b) appropriate frequency and time of delivery; c) avoiding mass and repetitive messages; and d) use of short, concise and creative messages. Although in Peru receiving text messages is usually a free service, it is important to remind participants that receiving messages will be free of charge. Conclusion: Text messages can be used to promote HIV testing among Peruvian MSM. It is important to consider adequate frequency, message content and cost when delivering messages to promote HIV testing in this population.
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Timler, Dariusz, Katarzyna Bogusiak, Anna Kasielska-Trojan, Aneta Neskoromna-Jędrzejczak, Robert Gałązkowski, and Łukasz Szarpak. "Short Text Messages (SMS) as an Additional Tool for Notifying Medical Staff in Case of a Hospital Mass Casualty Incident." Disaster Medicine and Public Health Preparedness 10, no. 1 (2015): 38–41. http://dx.doi.org/10.1017/dmp.2015.108.
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AbstractObjectiveThe aim of the study was to verify the effectiveness of short text messages (short message service, or SMS) as an additional notification tool in case of fire or a mass casualty incident in a hospital.MethodsA total of 2242 SMS text messages were sent to 59 hospital workers divided into 3 groups (n=21, n=19, n=19). Messages were sent from a Samsung GT-S8500 Wave cell phone and Orange Poland was chosen as the telecommunication provider. During a 3-month trial period, messages were sent between 3:35 PM and midnight with no regular pattern. Employees were asked to respond by telling how much time it would take them to reach the hospital in case of a mass casualty incident.ResultsThe mean reaction time (SMS reply) was 36.41 minutes. The mean declared time of arrival to the hospital was 100.5 minutes. After excluding 10% of extreme values for declared arrival time, the mean arrival time was estimated as 38.35 minutes.ConclusionsShort text messages (SMS) can be considered an additional tool for notifying medical staff in case of a mass casualty incident. (Disaster Med Public Health Preparedness. 2016;10:38–41)
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Gebremariam, Kidane Tadesse, Oksana Zelenko, Znabu Hadush, Afework Mulugeta, and Danielle Gallegos. "Could mobile phone text messages be used for infant feeding education in Ethiopia? A formative qualitative study." Health Informatics Journal 26, no. 4 (2020): 2614–24. http://dx.doi.org/10.1177/1460458220911779.
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A majority of the world’s population now live in areas with a mobile telephone network. This expansion of the network enables people to use more mobile phone functionalities such as short message service, multimedia, and the Internet. Mobile phone–based health (mHealth) interventions have been considered to have benefits in low-income countries. The aim of this study was to explore the feasibility of a short message service for breastfeeding education in Ethiopia. Four focus groups—two with mothers and two with fathers—were conducted with a total of 41 participants. The focus group discussion recordings were transcribed in Tigrigna verbatim, and then translated to English. The data were analyzed using thematic analysis, underpinned by the technology acceptance model. The following four general themes emerged from the focus group discussions: (1) Mobile phones: integrated into everyday life; (2) SMS text messaging: anytime, anywhere, as long as there is a sound; (3) Marketing versus utility: a barrier to SMS; and (4) Scientific messages from credible experts are key to reading SMS-based messages. Parents in Ethiopia showed interest in receiving weekly infant feeding-related short messages. Short message service–based interventions could therefore be an option for improving knowledge and awareness of parents regarding infant feeding.
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YVON, FRANÇOIS. "Rewriting the orthography of SMS messages." Natural Language Engineering 16, no. 2 (2010): 133–59. http://dx.doi.org/10.1017/s1351324909990258.
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AbstractElectronic written texts used in computer-mediated interactions (emails, blogs, chats, and the like) contain significant deviations from the norm of the language. This paper presents the detail of a system aiming at normalizing the orthography of French SMS messages: after discussing the linguistic peculiarities of these messages and possible approaches to their automatic normalization, we present, compare, and evaluate various instanciations of a normalization device based on weighted finite-state transducers. These experiments show that using an intermediate phonemic representation and training, our system outperforms an alternative normalization system based on phrase-based statistical machine translation techniques.
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Middleton, Matthew, Sarah Somerset, Catrin Evans, and Holly Blake. "Test@Work Texts: Mobile Phone Messaging to Increase Awareness of HIV and HIV Testing in UK Construction Employees during the COVID-19 Pandemic." International Journal of Environmental Research and Public Health 17, no. 21 (2020): 7819. http://dx.doi.org/10.3390/ijerph17217819.
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Background: HIV poses a threat to global health. With effective treatment options available, education and testing strategies are essential in preventing transmission. Text messaging is an effective tool for health promotion and can be used to target higher risk populations. This study reports on the design, delivery and testing of a mobile text messaging SMS intervention for HIV prevention and awareness, aimed at adults in the construction industry and delivered during the COVID-19 pandemic. Method: Participants were recruited at Test@Work workplace health promotion events (21 sites, n = 464 employees), including health checks with HIV testing. Message development was based on a participatory design and included a focus group (n = 9) and message fidelity testing (n = 291) with assessment of intervention uptake, reach, acceptability, and engagement. Barriers to HIV testing were identified and mapped to the COM-B behavioural model. 23 one-way push SMS messages (19 included short web links) were generated and fidelity tested, then sent via automated SMS to two employee cohorts over a 10-week period during the COVID-19 pandemic. Engagement metrics measured were: opt-outs, SMS delivered/read, number of clicks per web link, four two-way pull messages exploring repeat HIV testing, learning new information, perceived usefulness and behaviour change. Results: 291 people participated (68.3% of eligible attendees). A total of 7726 messages were sent between March and June 2020, with 91.6% successfully delivered (100% read). 12.4% of participants opted out over 10 weeks. Of delivered messages, links were clicked an average of 14.4% times, max 24.1% for HIV related links. The number of clicks on web links declined over time (r = −6.24, p = 0.01). Response rate for two-way pull messages was 13.7% of participants. Since the workplace HIV test offer at recruitment, 21.6% reported having taken a further HIV test. Qualitative replies indicated behavioural influence of messaging on exercise, lifestyle behaviours and intention to HIV test. Conclusions: SMS messaging for HIV prevention and awareness is acceptable to adults in the construction industry, has high uptake, low attrition and good engagement with message content, when delivered during a global pandemic. Data collection methods may need refinement for audience, and effect of COVID-19 on results is yet to be understood.
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Bermon, Anderson, Ana Fernanda Uribe, Paula Fernanda Pérez-Rivero, et al. "Efficacy and Safety of Text Messages Targeting Adherence to Cardiovascular Medications in Secondary Prevention: TXT2HEART Colombia Randomized Controlled Trial." JMIR mHealth and uHealth 9, no. 7 (2021): e25548. http://dx.doi.org/10.2196/25548.
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Background Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of mortality worldwide, with a prevalence of approximately 100 million patients. There is evidence that antiplatelet agents and antihypertensive medications could reduce the risk of new vascular events in this population; however, treatment adherence is very low. An SMS text messaging intervention was recently developed based on behavior change techniques to increase adherence to pharmacological treatment among patients with a history of ASCVD. Objective This study aims to evaluate the efficacy and safety of an SMS text messaging intervention to improve adherence to cardiovascular medications in patients with ASCVD. Methods A randomized controlled clinical trial for patients with a prior diagnosis of cardiovascular events, such as acute myocardial infarction, unstable angina, cerebrovascular disease, or peripheral artery disease, in one center in Colombia was conducted. Patients randomized to the intervention arm were assigned to receive SMS text messages daily for the first 4 weeks, 5 SMS text messages on week 5, 3 SMS text messages each in weeks 6 and 7, and 1 SMS text message weekly from week 8 until week 52. In contrast, patients in the control arm received a monthly SMS text message reminding them of the next study appointment and the importance of the study, requesting information about changes in their phone number, and thanking them for participating in the study. The primary endpoint was the change in low-density lipoprotein cholesterol (LDL-C) levels, whereas the secondary endpoints were the changes in thromboxane B2 levels, heart rate, systolic and diastolic blood pressure, medication adherence, cardiac and noncardiac mortality, and hospitalization. Linear regression analyses and bivariate tests were performed. Results Of the 930 randomized patients, 805 (86.5%) completed follow-up and were analyzed for the primary endpoint. There was no evidence that the intervention changed the primary outcome (LDL-C levels; P=.41) or any of the secondary outcomes evaluated (all P>.05). There was also no evidence that the intervention was associated with adverse events. Conclusions In this study, there was no evidence that a behavior modification intervention delivered by SMS text messaging improved LDL-C levels, blood pressure levels, or adherence at 12 months. More research is needed to evaluate whether different SMS text messaging strategies, including personalized messages and different timings, are effective; future studies should include mixed methods to better understand why, for whom, and in which context (eg, health system or social environment) SMS text messaging interventions work (or not) to improve adherence in patients with ASCVD. Trial Registration ClinicalTrials.gov NCT03098186; https://clinicaltrials.gov/ct2/show/NCT03098186 International Registered Report Identifier (IRRID) RR2-10.1136/bmjopen-2018-028017
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Dombrowski, Stephan U., Matthew McDonald, Marjon van der Pol, et al. "Game of Stones: feasibility randomised controlled trial of how to engage men with obesity in text message and incentive interventions for weight loss." BMJ Open 10, no. 2 (2020): e032653. http://dx.doi.org/10.1136/bmjopen-2019-032653.
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ObjectivesTo examine the acceptability and feasibility of narrative text messages with or without financial incentives to support weight loss for men.DesignIndividually randomised three-arm feasibility trial with 12 months’ follow-up.SettingTwo sites in Scotland with high levels of disadvantage according to Scottish Index for Multiple Deprivation (SIMD).ParticipantsMen with obesity (n=105) recruited through community outreach and general practitioner registers.InterventionsParticipants randomised to: (A) narrative text messages plus financial incentive for 12 months (short message service (SMS)+I), (B) narrative text messages for 12 months (SMS only), or (C) waiting list control.OutcomesAcceptability and feasibility of recruitment, retention, intervention components and trial procedures assessed by analysing quantitative and qualitative data at 3, 6 and 12 months.Results105 men were recruited, 60% from more disadvantaged areas (SIMD quintiles 1 or 2). Retention at 12 months was 74%. Fewer SMS+I participants (64%) completed 12-month assessments compared with SMS only (79%) and control (83%). Narrative texts were acceptable to many men, but some reported negative reactions. No evidence emerged that level of disadvantage was related to acceptability of narrative texts. Eleven SMS+I participants (31%) successfully met or partially met weight loss targets. The cost of the incentive per participant was £81.94 (95% CI £34.59 to £129.30). Incentives were acceptable, but improving health was reported as the key motivator for weight loss. All groups lost weight (SMS+I: −2.51 kg (SD=4.94); SMS only: −1.29 kg (SD=5.03); control: −0.86 kg (SD=5.64) at 12 months).ConclusionsThis three-arm weight management feasibility trial recruited and retained men from across the socioeconomic spectrum, with the majority from areas of disadvantage, was broadly acceptable to most participants and feasible to deliver.Trial registration numberNCT03040518.
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Buntaine, Mark T., Ryan Jablonski, Daniel L. Nielson, and Paula M. Pickering. "SMS texts on corruption help Ugandan voters hold elected councillors accountable at the polls." Proceedings of the National Academy of Sciences 115, no. 26 (2018): 6668–73. http://dx.doi.org/10.1073/pnas.1722306115.
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Many politicians manipulate information to prevent voters from holding them accountable; however, mobile text messages may make it easier for nongovernmental organizations to credibly share information on official corruption that is difficult for politicians to counter directly. We test the potential for texts on budget management to improve democratic accountability by conducting a large (n= 16,083) randomized controlled trial during the 2016 Ugandan district elections. In cooperation with a local partner, we compiled, simplified, and text-messaged official information on irregularities in local government budgets. Verified recipients of messages that described more irregularities than expected reported voting for incumbent councillors 6% less often; verified recipients of messages conveying fewer irregularities than expected reported voting for incumbent councillors 5% more often. The messages had no observable effect on votes for incumbent council chairs, potentially due to voters’ greater reliance on other sources of information for higher profile elections. These mixed results suggest that text messages on budget corruption help voters hold some politicians accountable in settings where elections are not free and fair.
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Karasz, Hilary N., Sharon Bogan, and Lindsay Bosslet. "Communicating with the Workforce during Emergencies: Developing an Employee Text Messaging Program in a Local Public Health Setting." Public Health Reports 129, no. 6_suppl4 (2014): 61–66. http://dx.doi.org/10.1177/00333549141296s409.
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Short message service (SMS) text messaging can be useful for communicating information to public health employees and improving workforce situational awareness during emergencies. We sought to understand how the 1,500 employees at Public Health – Seattle & King County, Washington, perceived barriers to and benefits of participation in a voluntary, employer-based SMS program. Based on employee feedback, we developed the system, marketed it, and invited employees to opt in. The system was tested during an ice storm in January 2012. Employee concerns about opting into an SMS program included possible work encroachment during non-work time and receiving excessive irrelevant messages. Employees who received messages during the weather event reported high levels of satisfaction and perceived utility from the program. We conclude that text messaging is a feasible form of communication with employees during emergencies. Care should be taken to design and deploy a program that maximizes employee satisfaction.
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Spilioti, Tereza. "Graphemic representation of text-messaging." Pragmatics. Quarterly Publication of the International Pragmatics Association (IPrA) 19, no. 3 (2009): 393–412. http://dx.doi.org/10.1075/prag.19.3.05spi.
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The aim of this study is to investigate the choice of alphabetical encoding in Greek text-messaging (or Short Message Service, SMS). The analysis will be based on a corpus of 447 text-messages exchanged among participants who belong to the age group of ‘youth’ (15-25 years old) and live in Athens (Greece). The data analysis will show that the standard practice of writing with Greek characters represents the norm in Greek SMS. The script norm will be discussed in relation to the medium’s technological affordances and the participants’ stance towards new media. The analysis will then focus on non-standard graphemic choices, such as the use of both, Greek and Roman, alphabets in the encoding of single messages. It will be demonstrated that such marked choices are employed as a means of indexing the participants’ affiliation with global popular cultures and enhancing expressivity in a medium of reduced paralinguistic cues.
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Le, Daisy, Cheryl L. Holt, Darlene R. Saunders, et al. "Feasibility and acceptability of SMS text messaging in a prostate cancer educational intervention for African American men." Health Informatics Journal 22, no. 4 (2016): 932–47. http://dx.doi.org/10.1177/1460458215598636.
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African Americans’ greater access to mobile phones makes short messaging service technology a promising complement to health promotion interventions. Short messaging service text messages were added to the Men’s Prostate Awareness Church Training project, a men’s health intervention for African American men. We report on the feasibility and acceptability of the use of short messaging service text messages in the intervention. Short messaging service text messages served as (1) workshop reminders; (2) post-workshop message reinforcement; (3) spiritual/motivational messages; and (4) participant retention. At workshop 4, over 65 percent of participants wished to continue receiving the messages. While there was an increase in recall over time, more than one-third of the participants did not recall receiving the 53 text messages. However, recall was considerably greater among men who attended the Men’s Prostate Awareness Church Training workshops. Overall, the inclusion of text messages in health promotion interventions targeting mature African American men was found to be feasible and acceptable.
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Ngowi, Kennedy M., Eusibious Maro, Pythia T. Nieuwkerk, Rob E. Aarnoutse, Blandina T. Mmbaga, and I. Marion Sumari-De Boer. "PO 8480 TECHNICAL FEASIBILITY OF SENDING SMS TO REMIND TAKING MEDICATION AMONG PREGNANT AND BREASTFEEDING WOMEN LIVING WITH HIV IN KILIMANJARO, TANZANIA." BMJ Global Health 4, Suppl 3 (2019): A43.3—A44. http://dx.doi.org/10.1136/bmjgh-2019-edc.114.
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BackgroundPregnant women living with HIV have difficulties in reaching adequate levels of adherence to treatment. One way to intervene is sending reminder cues using short message service (SMS) texts. We conducted a pilot study on the use of SMS among pregnant and breastfeeding women living with HIV in Kilimanjaro, Tanzania. One objective was to investigate technical feasibility of sending SMS reminders.MethodsWe enrolled adult (age 18–45) pregnant or breastfeeding women living with HIV from Kilimanjaro region, Tanzania. Women received a reminder SMS 30 min before usual time of intake. One hour after usual time of intake, they received an SMS asking whether she took medication. The women had to reply with ‘Yes’ or ‘No’. SMSes were sent less-than-daily and randomly distributed over the week. We did descriptive analyses of sent messages, delivered messages and estimation of adherence based on messages.ResultsWe enrolled 25 women. In total, 4963 messages were sent of which 40 failed to be delivered (1%). 1664 SMS were sent with a question if medication was taken, wich received an answer 1580 times (91%). The answer was ‘Yes’ in 1137 cases (65%), ‘No’ in 10 cases (0.6%) and indefinable in 433 cases (26%). The median adherence based on ‘Yes’-answers was 74% [range 24–99]. If also counting the indefinable answers, the mean adherence was 100% [range 95–100].ConclusionDespite a few technical issues, we believe using SMS for reminder cues in Tanzania works well. The number of failed deliveries is nearly zero and women have replied to the majority of SMS. Efforts are needed to instruct women better on replying and on detecting the right answer in case of typing errors. We conclude that using SMS has potential to improve adherence and should be further investigated in clinical trials to determine the effect on adherence to treatment.
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Chiluwa, Innocent. "Assessing the Nigerianness of SMS text-messages in English." English Today 24, no. 1 (2008): 51–56. http://dx.doi.org/10.1017/s0266078408000102.
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ABSTRACTTo what extent does the distinctiveness of Nigerian English come through in text messages? In the history of the English language certain developments have left significant linguistic marks on the language. As new developments and cultural forms occur, new words and styles of expression evolve with them and spread. This is true of the new linguistic style that is associated with the Global System for Mobile Communications (GSM) revolution in Nigeria since 2001. GSM has brought with it a variety of English that is situationally distinctive and context. GSM came to Nigeria with the licensing of MTN and Econet (now Celtel) in 2001 during the Obasanjo administration, after many years of decaying telecommunication infrastructure. Within a short time after the introduction of mobile telecommunication, almost a million subscribers mainly in the cities made a rush at possessing mobile phones and were willing to pay any tariff. N50 (50 naira) were paid per minute per call as against N15 per text message. This was said to be the highest rate in Africa, causing many subscribers to opt for text-messaging as a cheaper alternative.
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Deumert, Ana, and Sibabalwe Oscar Masinyana. "Mobile language choices — The use of English and isiXhosa in text messages (SMS)." English World-Wide 29, no. 2 (2008): 117–47. http://dx.doi.org/10.1075/eww.29.2.02deu.
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This paper looks at language choice and use in South African SMS communication (texting) among bilingual (isiXhosa / English-speaking) users. Although English is the preferred language for most of the 22 participants (aged between 18 and 27), SMSes also create a forum for isiXhosa literacy (either in isiXhosa messages or in mixed English-isiXhosa messages). The English-language SMSes produced by these bilingual speakers share many of the features which have been reported for English SMS communication internationally (abbreviations, paralinguistic restitutions, non-standard spellings), and provide evidence for what one might call a global English SMS standard. At the same time, however, their SMSes also contain local linguistic features and, in particular, local, cultural content. The isiXhosa messages differ markedly from the writers’ English-language messages in that they contain no abbreviated material, non-standard spellings or paralinguistic restitutions and thus violate the sociolinguistic maxims of SMS / texting as postulated by Thurlow (2003). These bilingual writers thus communicate in the electronic medium using two different languages as well as two, non-overlapping sets of sociolinguistic norms.
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Baltrėnas, Pranas, and Raimondas Buckus. "RESEARCH AND EVALUATION OF THE ENERGY FLUX DENSITY OF THE MOBILE PHONE ELECTROMAGNETIC FIELD / MOBILIŲJŲ TELEFONŲ ELEKTROMAGNETINIO LAUKO ENERGIJOS SRAUTO TANKIO TYRIMAI IR ĮVERTINIMAS." Mokslas - Lietuvos ateitis 5, no. 4 (2012): 462–67. http://dx.doi.org/10.3846/mla.2012.74.
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The article analyses variations in the energy flux density of the electromagnetic field of 10 mobile phones depending on distance. The studies have been conducted using three modes: sending a text message, receiving a text message and connecting a mobile phone to the Internet. When text messages are received or sent from a mobile phone, the values of the energy flux density of the mobile phone electromagnetic field exceed the safe allowable limit and make 10 μW / cm². A distance of 10, 20 and 30 cm from a mobile phone is effective protection against the energy flux density of the electromagnetic field when writing texts, receiving messages or connecting to the mobile Internet. Santrauka Nagrinėjami 10 mobiliųjų telefonų elektromagnetinių laukų energijos srauto tankio kitimai priklausomai nuo atstumo. Tyrimai atliekami, kai iš mobiliojo telefono siunčiamas SMS, kai į mobilųjį telefoną yra siunčiamas SMS iš kito mobiliojo telefono, kai mobilusis telefonas jungiamas prie mobiliojo interneto. Mobiliųjų telefonų elektromagnetinio lauko energijos srauto tankio vertės, kai iš mobiliojo telefono siunčiamas ar gaunamas SMS, viršija saugią leistiną 10 µW/cm² normą. 10, 20, 30 cm atstumas nuo mobiliojo telefono – tinkama apsauga nuo elektromagnetinio lauko energijos srauto tankio viršijimo rašant ar gaunant SMS žinutes, jungiantis prie mobiliojo interneto. Mobiliųjų telefonų elektromagnetinių laukų energijos srauto tankio priklausomybė nuo atstumo pateikiama grafikais.
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Nsagha, Dickson Shey, Vincent Verla Siysi, Same Ekobo, Thomas Obinchemti Egbe, and Odette Dzemo Kibu. "One-Way and Two-Way Mobile Phone Text Messages for Treatment Adherence Among Patients With HIV: Protocol for a Randomized Controlled Trial." JMIR Research Protocols 9, no. 9 (2020): e16127. http://dx.doi.org/10.2196/16127.
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Background Incomplete adherence to antiretroviral therapy (ART) is one of the factors that contribute to HIV drug resistance, and it is a major problem for the public health system in controlling the HIV pandemic. There is emerging evidence that SMS can play an important role in health care delivery among patients with HIV on ART, especially in resource-limited settings. Objective This paper aims to assess the impact of two-way and one-way SMS text messaging on adherence to HIV treatment. We hypothesized that sending weekly text messages through the one-way and two-way SMS text messaging approach will improve adherence to ART among patients with HIV and improve associated clinical outcomes (quality of life). Methods A randomized controlled trial is being carried out among participants with HIV who have been on ART for at least one month from an accredited treatment center, namely the Buea Regional Hospital and Kumba District Hospital of South West Region, Cameroon. Participants with HIV, both male and female, aged 21 years and older make up a sample size of 207. The interventions involved the use of mobile phone text messages. Before commencing the intervention, a focus group discussion was carried out among the participants to understand their perception about the use of SMS-based interventions to improve adherence. A total of 246 participants were randomized to receive either a one-way text message (SMS sent to a recipient without recipient sending a reply) or two-way text message (SMS sent to a recipient and recipient sends a reply) or the control (no SMS, only standard care). Data on adherence and quality of life were collected at baseline and after 6 months and will be analyzed using SPSS version 21, while qualitative data will be analyzed using Atlas.ti 7.5. Results Data collection began in September 2019 with focus group discussions and baseline data collection. After 1 month of baseline data collection, the intervention began in October 2019, and postintervention data were collected after 6 months (March 2020). At the end of the study, we will be able to understand the perception of patients toward SMS text messaging–based interventions and also assess the impact of one-way and two-way SMS text messages on treatment adherence among patients with HIV and on associated clinical outcomes (quality of life). Conclusions The impact of SMS text messaging varies across different settings. The results from this study will determine the perception of patients toward an SMS text messaging–based intervention and its impact on adherence to ART. International Registered Report Identifier (IRRID) DERR1-10.2196/16127
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Patrick C., Endong, Floribert, and Essoh, Ndobo Eugenie Grace Eugenie Grace. "Orality versus literacy in the Nigerian SMS discourse." Khazar Journal of Humanities and Social Sciences 18, no. 3 (2015): 33–47. http://dx.doi.org/10.5782/2223-2621.2015.18.3.33.
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The SMS discourse is generally known to be hybrid in nature, as it very often combines features of both orality and literacy. In line with this, numerous labels – such as oral-written text, netlish, netspeak and the like – have been employed in reference to the phenomenon. These appellations point to the hybrid nature of the phenomenon. This article attempts to show to what extent orality shapes the content of Nigerian SMS discourse. It probes into the various linguistic features observable in 2000 SMS texts messages generated by both literate and semi-literate texters from 5 Nigerian towns (including Lagos, Enugu, Calabar, Uyo and Oweri), in view of evaluating the extent to which features of orality may be found in the Nigerian SMS discourse. It argues that the Nigerian SMS discourse has more literacy features than it has characteristics of oral language. These literacy features are dominantly observable in SMS messages composed by literate Nigerian texters. On the other hand, orality features are dominantly present in SMS texts generated by semi-educated texters. The principal orality features observable in these SMS texts (from both literate and semiliterate texters) include graphones, vowel deletion, initialisation, onomatopoeic expressions, truncation among others.
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Duan, Suqian, Haoran Wang, Amanda Wilson, et al. "Developing a Text Messaging Intervention to Reduce Deliberate Self-Harm in Chinese Adolescents: Qualitative Study." JMIR mHealth and uHealth 8, no. 6 (2020): e16963. http://dx.doi.org/10.2196/16963.
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Background Deliberate self-harm is common during adolescence and can have detrimental consequences for the well-being of adolescents. Although it is sometimes difficult to engage adolescents in traditional psychotherapies for deliberate self-harm, SMS text messaging has been shown to be promising for cost-effective and low-intensity interventions. Objective This study aimed to investigate the views of Chinese adolescents with deliberate self-harm about SMS text messaging interventions in order to develop an acceptable and culturally competent intervention for adolescents with deliberate self-harm. Methods Semistructured interviews were conducted with 23 adolescents who had experience with deliberate self-harm. The transcripts of the interviews were analyzed using thematic analysis. Results Four themes were identified: beneficial perception of receiving messages, short frequency and duration of messages, caring content in messages, and specific times for sending messages. Most of the participants perceived SMS text messaging interventions to be beneficial. The key factors that emerged for the content of the intervention included encouragement and company, feeling like a virtual friend, providing coping strategies, and individualized messages. In addition, the preferred frequency and duration of the SMS text messaging intervention were identified. Conclusions Our study will help in the development of a culturally appropriate SMS text messaging intervention for adolescents with deliberate self-harm. It has the potential to decrease deliberate self-harm instances by providing acceptable support for adolescents with deliberate self-harm who may be reluctant to seek face-to-face psychotherapies.
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Singleton, Anna, Rebecca Raeside, Stephanie R. Partridge, et al. "Co-designing a Lifestyle-Focused Text Message Intervention for Women After Breast Cancer Treatment: Mixed Methods Study." Journal of Medical Internet Research 23, no. 6 (2021): e27076. http://dx.doi.org/10.2196/27076.
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Background Breast cancer is the most common cancer among women globally. Recovery from breast cancer treatment can be mentally and physically challenging. SMS text message programs offer a novel way to provide health information and support, but few programs are co-designed with consumer representatives. Objective This study aims to report the procedures and outcomes of a co-design process of a lifestyle-focused SMS text message program to support women’s mental and physical health after breast cancer treatment. Methods We followed an iterative mixed methods two-step process: (1) co-design workshop with consumers and health professionals and researchers to draft text messages and (2) evaluation of message content, which was scored (5-point Likert scale; 1=strongly disagree to 5=strongly agree) for ease of understanding, usefulness, and appropriateness, and readability (Flesch-Kincaid score). Additional free-text responses and semistructured interviews were coded into themes. Messages were edited or deleted based on the evaluations, with consumers’ evaluations prioritized. Results In step 1, co-designed text messages (N=189) were semipersonalized, and the main content themes were (1) physical activity and healthy eating, (2) medications and side effects, (3) mental health, and (4) general breast cancer information. In step 2, consumers (n=14) and health professionals and researchers (n=14) provided 870 reviews of 189 messages and found that most messages were easy to understand (799/870, 91.8%), useful (746/870, 85.7%), and appropriate (732/870, 84.1%). However, consumers rated 50 messages differently from health professionals and researchers. On the basis of evaluations, 37.6% (71/189) of messages were deleted, 36.5% (69/189) were edited, and 12 new messages related to fatigue, self-care, and cognition were created. The final 130 text messages had a mean 7.12 (SD 2.8) Flesch-Kincaid grade level and 68.9 (SD 15.5) ease-of-reading score, which represents standard reading ease. Conclusions Co-designing and evaluating a bank of evidence-based mental and physical health-themed text messages with breast cancer survivors, health professionals, and researchers was feasible and resulted in a bank of 130 text messages evaluated highly by participants. Some consumer evaluations differed from health professionals and researchers, supporting the importance of co-design.
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Shanks, Sarah, Alessandra Morelli, Elena Ardines, Gillian Holdsworth, and Paula Baraitser. "Two-Way Text Messaging to Support Self-Care and Delivery of an Online Sexual Health Service: Mixed Methods Evaluation." JMIR mHealth and uHealth 8, no. 8 (2020): e17191. http://dx.doi.org/10.2196/17191.
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Background Digital health care is increasingly used to improve health service accessibility and reduce costs. Remote health care requires a significant self-management role for service users, and this generates information provision and support needs that should be reflected in service planning. SMS text messaging offers a convenient and low-cost method of communication and is increasingly used across digital health care services to provide remote support. Objective The aim of this study was to quantify the number of messages generated through user interaction with a two-way SMS text messaging support service within an online sexual health service and to thematically explore the content of the messages and type of support required to facilitate self-management. Methods The content of all SMS text messages received by an online sexual health service was analyzed from April 4, 2018, to July 5, 2018. Messages were classified as being either administrative or clinical in nature and service or user initiated. For those messages that were both clinical and user initiated, a qualitative thematic analysis was completed to fully describe the content of the interactions. Results A total of 267 actionable messages were generated per 1000 orders requested through the service. Of the 8562 messages, 5447 (63.62%) messages were administrative and 3115 (36.38%) were clinical. Overall, 4306 of the 8562 messages (50.29%) responded to service-generated queries reflecting the public health and clinical responsibilities of an online provider, and 4256 (49.71%) were user-generated queries, demonstrating a willingness by users to proactively engage with a two-way SMS text messaging support service. Of the 3115 clinical messages, 968 (31.08%) clinical messages were user initiated and shared personal and complex clinical information, including requests for help with the self-testing process and personalized clinical advice relating to symptoms and treatment. Conclusions This study demonstrates the willingness of users of an online sexual health service to engage with two-way SMS text messaging and provides insight into the quantity and nature of the support required to facilitate service delivery and self-care. Further work is required to understand the range of clinical problems that can be managed within this medium.
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CABATBAT, JOSEPHINE JILL T., and GIOVANNI A. TAPANG. "TEXTING STYLES AND INFORMATION CHANGE OF SMS TEXT MESSAGES IN FILIPINO." International Journal of Modern Physics C 24, no. 02 (2013): 1350002. http://dx.doi.org/10.1142/s0129183113500022.
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We identify the different styles of texting in Filipino short message service (SMS) texts and analyze the change in unigram and bigram frequencies due to these styles. Style preference vectors for sample texts were calculated and used to identify the style combination used by an average individual. The change in Shannon entropy of the SMS text is explained in light of a coding process.
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Bennell, Kim, Rachel K. Nelligan, Sarah Schwartz, et al. "Behavior Change Text Messages for Home Exercise Adherence in Knee Osteoarthritis: Randomized Trial." Journal of Medical Internet Research 22, no. 9 (2020): e21749. http://dx.doi.org/10.2196/21749.
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Background Exercise is a core recommended treatment for knee osteoarthritis (OA), yet adherence declines, particularly following cessation of clinician supervision. Objective This study aims to evaluate whether a 24-week SMS intervention improves adherence to unsupervised home exercise in people with knee OA and obesity compared with no SMS. Methods A two-group superiority randomized controlled trial was performed in a community setting. Participants were people aged 50 years with knee OA and BMI ≥30 kg/m2 who had undertaken a 12-week physiotherapist-supervised exercise program as part of a preceding clinical trial. Both groups were asked to continue their home exercise program unsupervised three times per week for 24 weeks and were randomly allocated to a behavior change theory–informed, automated, semi-interactive SMS intervention addressing exercise barriers and facilitators or to control (no SMS). Primary outcomes were self-reported home exercise adherence at 24 weeks measured by the Exercise Adherence Rating Scale (EARS) Section B (0-24, higher number indicating greater adherence) and the number of days exercised in the past week (0-3). Secondary outcomes included self-rated adherence (numeric rating scale), knee pain, physical function, quality of life, global change, physical activity, self-efficacy, pain catastrophizing, and kinesiophobia. Results A total of 110 participants (56 SMS group and 54 no SMS) were enrolled and 99 (90.0%) completed both primary outcomes (48/56, 86% SMS group and 51/54, 94% no SMS). At 24 weeks, the SMS group reported higher EARS scores (mean 16.5, SD 6.5 vs mean 13.3, SD 7.0; mean difference 3.1, 95% CI 0.8-5.5; P=.01) and more days exercised in the past week (mean 1.8, SD 1.2 vs mean 1.3, SD 1.2; mean difference 0.6, 95% CI 0.2-1.0; P=.01) than the control group. There was no evidence of between-group differences in secondary outcomes. Conclusions An SMS program increased self-reported adherence to unsupervised home exercise in people with knee OA and obesity, although this did not translate into improved clinical outcomes. Trial Registration Australian New Zealand Clinical Trials Registry 12617001243303; https://tinyurl.com/y2ud7on5 International Registered Report Identifier (IRRID) RR2-10.1186/s12891-019-2801-z
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Hossain, Md Mosharaf, Kulanthayan Mani, and Ruhani Mat Min. "SMS Text Messages for Parents for the Prevention of Child Drowning in Bangladesh: Acceptability Study." JMIR mHealth and uHealth 8, no. 9 (2020): e16958. http://dx.doi.org/10.2196/16958.
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Background In many cases, greater use is being made of mobile phone text messages as a means of communication between patients and health care providers in countries around the world. Objective We studied the use of mobile phones and the factors related to the acceptability of text messages for parents for the prevention of child drowning in Bangladesh. Methods From a randomized controlled trial involving 800 parents, 10% (80/800) were selected, and socioeconomic status, mobile phone use, and acceptability of SMS text messages for drowning prevention were measured. Participants with at least one child under 5 years of age were selected from rural areas in Rajshahi District in Bangladesh. Mobile phone–based SMS text messages were sent to the participants. Multivariate regression was used to determine the factors related to the acceptability of text messages for the prevention of child drowning in Bangladesh. Results The acceptability of SMS text messages for the prevention of child drowning in Bangladesh was significantly lower among women (odds ratio [OR] 0.50, 95% CI 0.12-1.96, P=.02) than among men, lower for parents older than 30 years (OR 0.17, 95% CI 0.14-1.70, P=.01) compared to parents younger than 30 years, higher among parents who had an education (OR 1.63, 95% CI 1.11-5.80, P=.04) than among illiterate parents, and higher among parents with a monthly household income over 7000 Bangladeshi Taka (approximately US $82.54; OR 1.27, 95% CI 1.06-1.96, P=.05) than among parents whose monthly income was less than 7000 Bangladeshi Taka. Conclusions The high percentage of mobile phone use and the acceptability of SMS text messages for parents for the prevention of child drowning are encouraging, in terms of identifying the best strategy for using such technologies, and deserve further evaluation.
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Ekambareshwar, Mahalakshmi, Sarah Taki, Seema Mihrshahi, Louise A. Baur, Chris Rissel, and Li Ming Wen. "Participant Experiences of an Infant Obesity Prevention Program Delivered via Telephone Calls or Text Messages." Healthcare 8, no. 1 (2020): 60. http://dx.doi.org/10.3390/healthcare8010060.
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A 3-arm randomised controlled trial implemented in 2017, recruited participants from four Local Health Districts (LHDs) in New South Wales (NSW) to test an early obesity prevention program delivered via telephone calls (telephone) or text messages (SMS). This sub-study explored participants’ experience and satisfaction with the program. A multimethod design was used. Quantitative satisfaction questions were completed by participants when their child was six-months old. A purposive sample of participants with varying satisfaction levels was invited for in-depth qualitative interviews. Data were analysed using Excel (quantitative) and inductive thematic analysis (qualitative). Of the 1155 participants recruited: 947 (293 telephone; 338 SMS; 316 control) completed the six-month survey; 34 (14 telephone; 13 SMS; 7 control) were interviewed. Participants’ overall program satisfaction was 100% (telephone) and 85% (SMS). Participants’ qualitative responses demonstrated appreciation of: personalised stage-based information; opportunity to communicate with health professionals (telephone); linked Healthy Beginnings booklets and SMS mostly as nudges (SMS). There is a clear need for stage-based information, and supplemented modes of delivery i.e., text messages along with telephone calls; with text messages solely seen as nudges or reminders. However, individual preferences vary according to information needs at any given time, time constraints on new mothers and hence, multiple modes of information provision are recommended in order to reach a wider population and for better engagement. Choice and flexibility in mode of delivery has the potential to provide equitable access to information, empowering women with infants to practice recommended health behaviours for infant obesity prevention.
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Prabhakaran, Lathy, Wai Yan Chee, Kia Chong Chua, John Abisheganaden, and Wai Mun Wong. "The use of text messaging to improve asthma control: a pilot study using the mobile phone short messaging service (SMS)." Journal of Telemedicine and Telecare 16, no. 5 (2010): 286–90. http://dx.doi.org/10.1258/jtt.2010.090809.
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We have evaluated the feasibility of using the mobile phone short message service (SMS) for symptom monitoring in patients with asthma. All consecutive patients admitted to hospital for asthma during an 11-month period were considered for enrolment ( n = 497). Those meeting the inclusion criteria were randomized into a control ( n = 60) and intervention group ( n = 60). Patients in the intervention group received SMS messages according to a structured workflow, while patients in the control group had no SMS support. In the intervention group, the mean response rate to the messages was 82%. There was an improvement in the Asthma Control Test (ACT) scores in 36 subjects in the intervention group compared to 28 subjects in the control group. There were reductions in the number of nebulizations in 54 subjects in the control group compared to 50 subjects in the intervention group, and reductions in emergency department visits in 57 subjects in the control group compared to 51 subjects in the intervention group. However, none of these differences were significant. There was no reduction in admission rates in either group ( P = 0.5). The service was accepted by most patients, but its long-term effectiveness on the management of asthma remains to be determined.
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Ezpeleta, Enaitz, Iñaki Garitano, Urko Zurutuza, and José María Gómez Hidalgo. "Short Messages Spam Filtering Combining Personality Recognition and Sentiment Analysis." International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 25, Suppl. 2 (2017): 175–89. http://dx.doi.org/10.1142/s0218488517400177.
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Currently, short communication channels are growing up due to the huge increase in the number of smartphones and online social networks users. This growth attracts malicious campaigns, such as spam campaigns, that are a direct threat to the security and privacy of the users. While most researches are focused on automatic text classification, in this work we demonstrate the possibility of improving current short messages spam detection systems using a novel method. We combine personality recognition and sentiment analysis techniques to analyze Short Message Services (SMS) texts. We enrich a publicly available dataset adding these features, first separately and after in combination, of each message to the dataset, creating new datasets. We apply several combinations of the best SMS spam classifiers and filters to each dataset in order to compare the results of each one. Taking into account the experimental results we analyze the real inuence of each feature and the combination of both. At the end, the best results are improved in terms of accuracy, reaching to a 99.01% and the number of false positive is reduced.
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BYUN, Jeunghyun, So-Young PARK, Seung-Wook LEE, and Hae-Chang RIM. "Three-Phase Text Error Correction Model for Korean SMS Messages." IEICE Transactions on Information and Systems E92-D, no. 5 (2009): 1213–17. http://dx.doi.org/10.1587/transinf.e92.d.1213.
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Demirci, Jill R., Brian Suffoletto, Jack Doman, et al. "The Development and Evaluation of a Text Message Program to Prevent Perceived Insufficient Milk Among First-Time Mothers: Retrospective Analysis of a Randomized Controlled Trial." JMIR mHealth and uHealth 8, no. 4 (2020): e17328. http://dx.doi.org/10.2196/17328.
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Background Several recent trials have examined the feasibility and efficacy of automated SMS text messaging to provide remote breastfeeding support to mothers, but these texting systems vary in terms of design features and outcomes examined. Objective This study examined user engagement with and feedback on a theory-grounded SMS text messaging intervention intended to prevent perceived insufficient milk (PIM)—the single, leading modifiable cause of unintended breastfeeding reduction and cessation. Methods We recruited 250 nulliparous individuals intending to breastfeed between 13 and 25 weeks of pregnancy in southwestern Pennsylvania. Participants were randomly assigned with equal allocation to either an SMS intervention to prevent PIM and unintended breastfeeding reduction or cessation (MILK, a Mobile, semiautomated text message–based Intervention to prevent perceived Low or insufficient milK supply; n=126) or a control group receiving general perinatal SMS text messaging–based support via the national, free Text4Baby system (n=124). Participants in both groups received SMS text messages 3 to 7 times per week from 25 weeks of pregnancy to 8 weeks postpartum. The MILK intervention incorporated several automated interactivity and personalization features (eg, keyword texting for more detailed information on topics and branched response logic) as well as an option to receive one-on-one assistance from an on-call study lactation consultant. We examined participant interactions with the MILK system, including response rates to SMS text messaging queries. We also sought participant feedback on MILK content, delivery preferences, and overall satisfaction with the system via interviews and a remote survey at 8 weeks postpartum. Results Participants randomized to MILK (87/124, 70.2% white and 84/124, 67.7% college educated) reported that MILK texts increased their breastfeeding confidence and helped them persevere through breastfeeding problems. Of 124 participants, 9 (7.3%) elected to stop MILK messages, and 3 (2.4%) opted to reduce message frequency during the course of the study. There were 46 texts through the MILK system for individualized assistance from the study lactation consultant (25/46, 54% on weekends or after-hours). The most commonly texted keywords for more detailed information occurred during weeks 4 to 6 postpartum and addressed milk volume intake and breastfeeding and sleep patterns. MILK participants stated a preference for anticipatory guidance on potential breastfeeding issues and less content addressing the benefits of breastfeeding. Suggested improvements included extending messaging past 8 weeks, providing access to messaging for partners, and tailoring content based on participants’ pre-existing breastfeeding knowledge and unique breastfeeding trajectory. Conclusions Prenatal and postpartum evidence–based breastfeeding support delivered via semiautomated SMS text messaging is a feasible and an acceptable intervention for first-time mothers. To optimize engagement with digital breastfeeding interventions, enhanced customization features should be considered. Trial Registration ClinicalTrials.gov NCT02724969; https://clinicaltrials.gov/ct2/show/NCT02724969
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Susanto, Tony Dwi, and Robert Goodwin. "La prestation de services publics par message texte : les types de services et les facteurs d’acceptation." Télescope 18, no. 1-2 (2012): 63–83. http://dx.doi.org/10.7202/1009255ar.
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La plupart des services cybergouvernementaux dans les pays en développement n’ont pas réussi à mobiliser la population. L’écart entre ce qu’exige la technologie d’Internet et le piètre progrès des technologies de l’information dans ces pays serait la principale barrière à l’utilisation de ces services, mais la prestation de services publics par message texte (SMS) pourrait pallier cet écart. Notre article explique pourquoi le recours à ce canal constitue une bonne stratégie pour joindre les citoyens et les sensibiliser à l’utilisation des services publics électroniques, notamment dans les pays en développement. Nous énumérons les services gouvernementaux offerts par SMS à l’aide d’un modèle à six niveaux et décrivons également treize facteurs cognitifs et affectifs qui influencent le citoyen dans sa décision d’accepter ou non les services. Nous terminons en proposant des recommandations aux gouvernements pour faciliter une adoption rapide des services gouvernementaux par message texte.
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Kiritchenko, S., X. Zhu, and S. M. Mohammad. "Sentiment Analysis of Short Informal Texts." Journal of Artificial Intelligence Research 50 (August 20, 2014): 723–62. http://dx.doi.org/10.1613/jair.4272.
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We describe a state-of-the-art sentiment analysis system that detects (a) the sentiment of short informal textual messages such as tweets and SMS (message-level task) and (b) the sentiment of a word or a phrase within a message (term-level task). The system is based on a supervised statistical text classification approach leveraging a variety of surface-form, semantic, and sentiment features. The sentiment features are primarily derived from novel high-coverage tweet-specific sentiment lexicons. These lexicons are automatically generated from tweets with sentiment-word hashtags and from tweets with emoticons. To adequately capture the sentiment of words in negated contexts, a separate sentiment lexicon is generated for negated words. The system ranked first in the SemEval-2013 shared task `Sentiment Analysis in Twitter' (Task 2), obtaining an F-score of 69.02 in the message-level task and 88.93 in the term-level task. Post-competition improvements boost the performance to an F-score of 70.45 (message-level task) and 89.50 (term-level task). The system also obtains state-of-the-art performance on two additional datasets: the SemEval-2013 SMS test set and a corpus of movie review excerpts. The ablation experiments demonstrate that the use of the automatically generated lexicons results in performance gains of up to 6.5 absolute percentage points.
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Zhou, Zhongliang, Yanfang Su, Jesse Heitner, et al. "The Effects on Inappropriate Weight for Gestational Age of an SMS Based Educational Intervention for Pregnant Women in Xi’an China: A Quasi-Randomized Controlled Trial." International Journal of Environmental Research and Public Health 17, no. 5 (2020): 1482. http://dx.doi.org/10.3390/ijerph17051482.
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Background: The aim of this study was to estimate the effects of maternal text messages on inappropriate weight for gestational age (IWGA) in newborns in rural China. Methods: Participants were pregnant women presenting for antenatal care at a Maternal and Child Health Center in Xi’an, China during the 2013–2015 period. In total, 2115 women completed the program with follow-up information included in the final analyses. All mothers were divided into four groups, including (1) a control group that received only a few “Basic” messages, (2) a Care-Seeking (CS) message group, (3) Good Household Prenatal Practices (GHPP) message group, and (4) a group receiving all 148 text messages. The primary outcome was IWGA, including small for gestational age (SGA) and macrosomia (weighing ≥4000g at birth). Multivariable logistic regression using an intent-to-treat estimate was utilized. Results: In total, 19.5% of newborns were IWGA. The risk of IWGA was 23.0% in the control group, 19.6% in the CS group, 18.9% in the GHPP group, and 16.5% in the group with All Texts. Compared to the control group, the odds ratio of IWGA was 0.65 (0.48–0.89) for the group receiving All Texts, which remained statistically significant after performing the Holm-Bonferroni correction. The odds ratio of macrosomia was 0.54 (0.34–0.87) and 0.57 (0.36–0.49) for the Care Seeking message group and the All Texts group, respectively, with statistical significance. Conclusion: A package of free informational text messages, including advice for good household prenatal practices and care seeking, may prevent the inappropriate weight for gestational age through a protective effect on macrosomia. Advice to encourage care seeking in pregnancy may prevent macrosomia among neonates in rural China as well.
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Burner, Elizabeth, Mark Zhang, Sophie Terp, et al. "Feasibility and Acceptability of a Text Message–Based Intervention to Reduce Overuse of Alcohol in Emergency Department Patients: Controlled Proof-of-Concept Trial." JMIR mHealth and uHealth 8, no. 6 (2020): e17557. http://dx.doi.org/10.2196/17557.
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Background Emergency department (ED) patients have high rates of risky alcohol use, and an ED visit offers an opportunity to intervene. ED-based screening, brief intervention, and referral to treatment (SBIRT) reduces alcohol use and health care costs. Mobile health (mHealth) interventions may expand the impact of SBIRTs but are understudied in low-resource ED populations. Objective The objective of this study was to assess the feasibility of and patient satisfaction with a text-based mHealth extension of an ED screening program to reduce risky alcohol use in low-income, urban patients. Methods Research assistants screened a convenience sample of ED patients in person for risky alcohol use via the Alcohol Use Disorders Identification Test (AUDIT). Patients who reported AUDIT scores ≥8 and <20 were informed of their AUDIT score and risk. RAs invited patients with SMS text message–capable phones to receive mROAD (mobilizing to Reduce Overuse of Alcohol in the ED), an SMS text message–based extension of the ED screening program. mROAD is a 7-day program of twice-daily SMS text messages based on the National Institutes of Health’s Rethinking Drinking campaign. Participants were allocated to a control group (daily sham text messages without specific guidance on behaviors, such as “Thanks for taking part!”) or to the mROAD intervention group. Patients were interviewed at 30 days to assess acceptability, satisfaction, and changes in drinking behavior. Satisfaction was examined descriptively. Pre and post measurements of drinking behaviors and motivation were compared, as were differences in change scores between the intervention arms. Results Of 1028 patients screened, 95 (9.2%) exhibited risky alcohol use based on AUDIT, and 23/95 (24%) of those patients did not own an SMS text messaging–capable phone; this left 72/95 (76%) eligible patients. Among eligible participants, 48/72 (67%) agreed to enroll; 31/48 (65%) achieved follow-up (18/24 (75%) in the intervention group and 13/24 (55%) in the control group). Participants who completed follow-up reported high satisfaction. Changes in behavior were similar between the arms. Overall, the number of drinking days reported in the prior 30 days decreased by 5.0 (95% CI 1.7-8.3; P=.004), and the number of heavy drinking days decreased by 4.1 (95% CI 1.0 to 7.15, P=.01). Patients reported an 11-point increase (95% CI 2.6-20, P=.01, 10% overall increase) in motivation to change alcohol use via the Change Questionnaire. The were no statistical differences in drinking days, heavy drinking days, or motivation to change between the arms. Conclusions The mROAD trial was feasible. Over three-quarters of ED patients with risky alcohol use owned a text message–capable phone, and two-thirds of these patients were willing to participate; only 1 patient opted out of the intervention. Although 35% of patients were lost to follow-up at 30 days, those patients who did follow up had favorable impressions of the program; more than 90% reported that SMS text messages were a “good way to teach,” and 89% of intervention arm participants enjoyed the program and found that the messages were motivating. Both the mROAD and sham message groups showed promising changes in alcohol use and motivation to change. mROAD is a feasible intervention that may reduce rates of risky alcohol use in ED patients. Trial Registration ClinicalTrials.gov NCT02158949; https://clinicaltrials.gov/ct2/show/NCT02158949
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Carrier, L. Mark, and Sandra Y. Benitez. "The effect of bilingualism on communication efficiency in text messages (SMS)." Multilingua - Journal of Cross-Cultural and Interlanguage Communication 29, no. 2 (2010): 167–83. http://dx.doi.org/10.1515/mult.2010.007.
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Lowres, Nicole, Andrew Duckworth, Julie Redfern, Aravinda Thiagalingam, and Clara K. Chow. "Use of a Machine Learning Program to Correctly Triage Incoming Text Messaging Replies From a Cardiovascular Text–Based Secondary Prevention Program: Feasibility Study." JMIR mHealth and uHealth 8, no. 6 (2020): e19200. http://dx.doi.org/10.2196/19200.
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Background SMS text messaging programs are increasingly being used for secondary prevention, and have been shown to be effective in a number of health conditions including cardiovascular disease. SMS text messaging programs have the potential to increase the reach of an intervention, at a reduced cost, to larger numbers of people who may not access traditional programs. However, patients regularly reply to the SMS text messages, leading to additional staffing requirements to monitor and moderate the patients’ SMS text messaging replies. This additional staff requirement directly impacts the cost-effectiveness and scalability of SMS text messaging interventions. Objective This study aimed to test the feasibility and accuracy of developing a machine learning (ML) program to triage SMS text messaging replies (ie, identify which SMS text messaging replies require a health professional review). Methods SMS text messaging replies received from 2 clinical trials were manually coded (1) into “Is staff review required?” (binary response of yes/no); and then (2) into 12 general categories. Five ML models (Naïve Bayes, OneVsRest, Random Forest Decision Trees, Gradient Boosted Trees, and Multilayer Perceptron) and an ensemble model were tested. For each model run, data were randomly allocated into training set (2183/3118, 70.01%) and test set (935/3118, 29.98%). Accuracy for the yes/no classification was calculated using area under the receiver operating characteristics curve (AUC), false positives, and false negatives. Accuracy for classification into 12 categories was compared using multiclass classification evaluators. Results A manual review of 3118 SMS text messaging replies showed that 22.00% (686/3118) required staff review. For determining need for staff review, the Multilayer Perceptron model had highest accuracy (AUC 0.86; 4.85% false negatives; and 4.63% false positives); with addition of heuristics (specified keywords) fewer false negatives were identified (3.19%), with small increase in false positives (7.66%) and AUC 0.79. Application of this model would result in 26.7% of SMS text messaging replies requiring review (true + false positives). The ensemble model produced the lowest false negatives (1.43%) at the expense of higher false positives (16.19%). OneVsRest was the most accurate (72.3%) for the 12-category classification. Conclusions The ML program has high sensitivity for identifying the SMS text messaging replies requiring staff input; however, future research is required to validate the models against larger data sets. Incorporation of an ML program to review SMS text messaging replies could significantly reduce staff workload, as staff would not have to review all incoming SMS text messages. This could lead to substantial improvements in cost-effectiveness, scalability, and capacity of SMS text messaging–based interventions.
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Uhrig Castonguay, Breana J., Andrew E. Cressman, Irene Kuo, et al. "The Implementation of a Text Messaging Intervention to Improve HIV Continuum of Care Outcomes Among Persons Recently Released From Correctional Facilities: Randomized Controlled Trial." JMIR mHealth and uHealth 8, no. 2 (2020): e16220. http://dx.doi.org/10.2196/16220.
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Background Previously incarcerated individuals have suboptimal linkage and engagement in community HIV care. Mobile health (mHealth) interventions have been shown to be effective in addressing these gaps. In Washington, District of Columbia (DC), we conducted a randomized trial of an SMS text messaging–based mHealth intervention (CARE+ Corrections) to increase linkage to community HIV care and antiretroviral treatment adherence among HIV-infected persons involved in the criminal justice system. Objective This study aimed to describe the SMS text messaging–based intervention, participant use of the intervention, and barriers and facilitators of implementation. Methods From August 2013 to April 2015, HIV-positive incarcerated individuals were recruited within the DC Department of Corrections, and persons released in the past 6 months were recruited within the community via street-based recruitment, community partnerships, and referrals. Participants were followed for 6 months and received weekly or daily SMS text messages. Formative research resulted in the development of the content of the messages in 4 categories: HIV Appointment Reminders, Medication Adherence, Prevention Reminders, and Barriers to Care following release from jail. Participants could customize the timing, frequency, and message content throughout the study period. Results Of the 112 participants enrolled, 57 (50.9%) were randomized to the intervention group and 55 (49.1%) to the control group; 2 control participants did not complete the baseline visit, and were dropped from the study, leaving a total of 110 participants who contributed to the analyses. Study retention was similar across both study arms. Median age was 42 years (IQR 30-50), 86% (49/57) were black or African American, 58% (33/57) were male, 25% (14/57) were female, and 18% (10/57) were transgender. Median length of last incarceration was 4 months (IQR 1.7-9.0), and median lifetime number of times incarcerated was 6.5 (IQR 3.5-14.0). Most participants (32/54, 59%) had a baseline viral load of <200 copies/mL. Nearly all participants (52/57, 91%) chose to use a cell phone provided by the study. The most preferred Appointment Reminder message was Hey how you feeling? Don’t forget to give a call and make your appointment (19/57, 33%). The most preferred Medication Adherence message was Don’t forget your skittles! (31/57, 54%), and 63% (36/57) of participants chose to receive daily (vs weekly) messages from this category at baseline. The most preferred Prevention Reminder message was Stay strong. Stay clean (18/57, 32%). The most preferred Barriers to Care message was Holla at your case manager, they’re here to help (12/57, 22%). Minor message preference differences were observed among participants enrolled in the jail versus those from the community. Conclusions Participants’ ability to customize their SMS text message plan proved helpful. Further large-scale research on mHealth platforms is needed to assess its efficacy among HIV-infected persons with a history of incarceration. Trial Registration ClinicalTrials.gov NCT01721226; https://clinicaltrials.gov/ct2/show/NCT01721226
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Vold Lexander, Kristin. "Texting and African language literacy." New Media & Society 13, no. 3 (2011): 427–43. http://dx.doi.org/10.1177/1461444810393905.
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Mobile communication has become an important part of everyday life in Senegal, and text messages have turned out to be highly multilingual. So far Senegalese language policy has supported the use of the official language, French, in education and in writing in general, while the majority language, Wolof, has dominated the oral sphere. As SMS texts tend to include use of Wolof and other African languages as well as French, the question is whether texting will pave the way for African language literacy practices. The aim of this article is to study texting’s potential impact on the status of African languages as written languages through the investigation of SMS messages written and received by fifteen students from Dakar. Ethnographic tools have been used to collect text messages in Wolof, Fulfulde and French, as well as English, Spanish and Arabic, and also data on the context of communication and on the writers’ and receivers’ interpretations of the use of different languages. The analysis shows that African languages are given different roles and values in texting, being used in monolingual messages, in functional codeswitching and in mixed code messages.
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Bermon, Anderson, Ana Fernanda Uribe-Rodríguez, Paula Fernanda Pérez-Rivero, et al. "Evaluation of the efficacy and safety of text messages targeting adherence to cardiovascular medications in secondary prevention: the txt2heart Colombia randomised controlled trial protocol." BMJ Open 9, no. 12 (2019): e028017. http://dx.doi.org/10.1136/bmjopen-2018-028017.
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IntroductionAnti-platelet therapy, angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta-blockers and statins are cost-effective in patients with atherosclerotic cardiovascular diseases (ASCVD) for reducing the risk of ASCVD events. Unfortunately, there is abundant evidence that adherence to these cardiovascular medications is far from ideal. A recent Cochrane review showed a potential beneficial effect of Short Message Service (SMS) interventions on adherence to medication in ASCVD patients.Methods and analysisThe txt2heart study is a pragmatic randomised single-blind controlled trial. The objective is to evaluate the efficacy and safety of an intervention with SMS messages delivered by mobile phones to improve adherence to cardiovascular medications in patients with ASCVD. The intervention consists of behavioural techniques delivered via SMS. The primary outcome is change in blood serum low-density lipoprotein cholesterol levels as an indicator of adherence to statins. Secondary outcomes will include systolic blood pressure as an indicator of adherence to blood-lowering therapies and heart rate as an indicator of adherence to beta-blockers, urine levels of 11-dehydrothromboxane B2, self-reported adherence to cardiovascular medications and rates of cardiovascular death or hospitalisation due to cardiovascular disease.Ethics and disseminationThe study will be performed in compliance with the protocol, regulatory requirements, Good Clinical Practice and ethical principles of the Declaration of Helsinki. The Ethics Committee of Fundación Cardiovascular de Colombia evaluated and approved the trial. The txt2heart Colombia trial aims to provide robust evidence to evaluate whether SMS messages delivered through mobile telephones change the behaviour of Colombian patients who have suffered a cardiovascular event. Trial results will be presented to the local health authorities, and if the intervention is effective and safe, we hope this strategy will be implemented quickly because of its low cost and wide-reaching impact on the population.Trial registration numberNCT03098186.
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Ngowi, Kennedy M., Eusibious Maro, Pythia T. Nieuwkerk, Rob E. Aarnoutse, Blandina T. Mmbaga, and I. Marion Sumari-De Boer. "PO 8476 USER EXPERIENCE OF SMS REMINDERS TO TAKE MEDICATION AMONG PREGNANT AND BREASTFEEDING WOMEN LIVING WITH HIV IN KILIMANJARO, TANZANIA." BMJ Global Health 4, Suppl 3 (2019): A43.2—A43. http://dx.doi.org/10.1136/bmjgh-2019-edc.113.
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BackgroundPregnant women living with HIV have difficulties in reaching adequate levels of treatment adherence. One way to intervene is sending reminder cues using short message service (SMS) texts. We conducted a pilot study on the use of SMS among pregnant and breastfeeding women living with HIV in Kilimanjaro, Tanzania. One objective was to investigate user experiences of SMS reminders.MethodsWe enrolled adult (age 18–45) pregnant or breastfeeding women living with HIV from Kilimanjaro region, Tanzania. Women received a reminder SMS 30 min before usual time of intake. One hour after usual time of intake, they received an SMS asking whether medication was taken. SMSes were sent less-than-daily and randomly distributed over the week. During consultation we listened to their feedback on the system. After six-months, we interviewed women using a semi-structured exit interview.ResultsTwenty-five women were enrolled. Two women were lost to follow-up. We received feedback from 18 women. Sixteen (89%) said they were content about the SMS reminding. One said she had problems with privacy issues (6%), but 5 specifically mentioned no privacy issues (28%). Preliminary results of 18 exit interviews show that 16 women (89%) had a good experience with the SMS. Fourteen women (78%) found the content of SMS good; 2 women (11%) said it was not good at all due to risk of unwanted disclosure. Three women (17%) experienced stigma. Eleven women (61%) told they were always able to reply to the SMS and 16 (89%) believed it really improves adherence.ConclusionWe believe most women were satisfied with the SMS system. A few women had trouble with risks or fear of unwanted disclosure. One way to solve that, may be to send more neutral language messages. The results can be used for clinical trial design to investigate the effect on adherence.
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Pollak, Kathryn I., Pauline Lyna, Xiaomei Gao, et al. "Efficacy of a Texting Program to Promote Cessation Among Pregnant Smokers: A Randomized Control Trial." Nicotine & Tobacco Research 22, no. 7 (2019): 1187–94. http://dx.doi.org/10.1093/ntr/ntz174.
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Abstract Introduction Smoking during pregnancy poses serious risks to baby and mother. Few disseminable programs exist to help pregnant women quit or reduce their smoking. We hypothesized that an SMS text-delivered scheduled gradual reduction (SGR) program plus support texts would outperform SMS support messages alone. Methods We recruited 314 pregnant women from 14 prenatal clinics. Half of the women received theory-based support messages throughout their pregnancy to promote cessation and prevent relapse. The other half received the support messages plus alert texts that gradually reduced their smoking more than 3–5 weeks. We conducted surveys at baseline, end of pregnancy, and 3 months postpartum. Our primary outcome was biochemically validated 7-day point prevalence abstinence at late pregnancy. Our secondary outcome was reduction in cigarettes per day. Results Adherence to the SGR was adequate with 70% responding to alert texts to smoke within 60 minutes. Women in both arms quit smoking at the same rate (9%–12%). Women also significantly reduced their smoking from baseline to the end of pregnancy from nine cigarettes to four; we found no arm differences in reduction. Conclusions Support text messages alone produced significant quit rates above naturally occurring quitting. SGR did not add significantly to helping women quit or reduce. Sending support messages can reach many women and is low-cost. More obstetric providers might consider having patients who smoke sign up for free texting programs to help them quit. Implications A disseminable texting program helped some pregnant women quit smoking. Clinical Trial Registration number: NCT01995097.
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Lim, M. S. C., J. S. Hocking, C. K. Aitken, et al. "16. A RANDOMIZED CONTROLLED TRIAL OF THE IMPACT OF EMAIL AND TEXT (SMS) MESSAGES ON THE SEXUAL HEALTH OF YOUNG PEOPLE." Sexual Health 4, no. 4 (2007): 290. http://dx.doi.org/10.1071/shv4n4ab16.
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Objective: To trial a novel method of sexual health promotion - sending email and mobile phone text messages (SMS) about safe sex and STI to promote reductions in STI behaviours and increases in STI knowledge and testing. Methods: Young people (aged 16-29) were recruited at a music festival in Melbourne. They completed a questionnaire about sexual risk behaviour and were randomised to either the intervention arm of the study (to receive messages) or a control group. Text messages were sent every 3-4 weeks for a twelve month period and included catchy STI prevention slogans. Emails were sent monthly and contained detailed information about STI topics and links to related websites. Participants completed follow-up questionnaires online after 3, 6 and 12 months. Clustered weighted estimating equations were used to compare outcomes of the two groups. Results: 994 people completed at least one questionnaire (507 in the intervention group and 487 in the control group); at baseline 58% were female, the median age was 19 years and 82% had ever had sex. At 12 months, STI knowledge was higher among the intervention group for both males (OR 3.19, 95% CI 1.52, 6.69) and females (OR 2.36, 95% CI 1.27, 4.37). Females in the intervention group were also more likely to have discussed sexual health with a clinician (OR 2.92, 95% CI 1.66, 5.15) and to have had an STI test in the past 6 months (OR 2.51, 95% CI 1.11, 5.69). There were no significant differences in condom use between the groups. Respondents' opinions of the SMS and emails were positive. Conclusions: Receiving regular sexual health-related SMS and email messages can improve knowledge in young people and health seeking behaviour in young women. SMS and email are low cost, widely available and convenient, which - when combined with their popularity among youth - means that these media have considerable potential for sexual health promotion.
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Tanue, Elvis Asangbeng, Dickson Shey Nsagha, Nana Njamen Theophile, and Jules Clement Nguedia Assob. "Improving Retention in Care and Promoting Adherence to HIV Treatment: Protocol for a Multisite Randomized Controlled Trial of Mobile Phone Text Messaging." JMIR Research Protocols 9, no. 8 (2020): e15680. http://dx.doi.org/10.2196/15680.
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Background The World Health Organization has prioritized the use of new technologies to assist in health care delivery in resource-limited settings. Findings suggest that the use of SMS on mobile phones is an advantageous application in health care delivery, especially in communities with an increasing use of this device. Objective The main aim of this trial is to assess whether sending weekly motivational text messages (SMS) through mobile phones versus no text messaging will improve retention in care and promote adherence to treatment and health outcomes among patients receiving HIV treatment in Fako Division of Cameroon. Methods This is a multisite randomized controlled single-blinded trial. Computer-generated random block sizes shall be used to produce a randomization list. Participants shall be randomly allocated into the intervention and control groups determined by serially numbered sealed opaque envelopes. The 156 participants will either receive the mobile phone text message or usual standard of care. We hypothesize that sending weekly motivational SMS reminders will produce a change in behavior to enhance retention; treatment adherence; and, hence, health outcomes. Participants shall be evaluated and data collected at baseline and then at 2, 4, and 6 months after the launch of the intervention. Text messages shall be sent out, and the delivery will be recorded. Primary outcome measures are retention in care and adherence to treatment. Secondary outcomes are clinical (weight, body mass index), biological (virologic suppression, tuberculosis coinfection), quality of life, treatment discontinuation, and mortality. The analysis shall be by intention-to-treat. Analysis of covariates shall be performed to determine factors influencing outcomes. Results Recruitment and random allocation are complete; 160 participants were allocated into 3 groups (52 in the single SMS, 55 in the double SMS, and 53 in the control). Data collection and analysis are ongoing, and statistical results will be available by the end of August 2019. Conclusions The interventions will contribute to an improved understanding of which intervention types can be feasible in improving retention in care and promoting adherence to antiretroviral therapy. Trial Registration Pan African Clinical Trial Registry in South Africa PACTR201802003035922; https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=3035 International Registered Report Identifier (IRRID) DERR1-10.2196/15680
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Watterson, Jessica L., Diego Castaneda, and Caricia Catalani. "Promoting Antenatal Care Attendance Through a Text Messaging Intervention in Samoa: Quasi-Experimental Study." JMIR mHealth and uHealth 8, no. 6 (2020): e15890. http://dx.doi.org/10.2196/15890.
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Background Antenatal care (ANC) has the potential to improve maternal health, but it remains underutilized and unevenly implemented in many low- and middle-income countries. Increasingly, text messaging programs for pregnant women show evidence that they can improve the utilization of ANC during pregnancy; however, gaps remain regarding how implementation affects outcomes. Objective This study aimed to assess facilitators and barriers to implementation of an SMS text messaging intervention for pregnant women in Samoa and to assess its impact on ANC attendance. Methods This study took place in Upolu, Samoa, from March to August 2014 and employed a quasi-experimental design. Half (n=3) of the public antenatal clinics on the island offered adult pregnant women the SMS text messaging intervention, with 552 women registering for the messages. At the comparison clinics (n=3), 255 women registered and received usual care. The intervention consisted of unidirectional text messages containing health tips and appointment reminders. The outcome of interest was the number of attended antenatal visits. Implementation data were also collected through a survey of the participating midwives (n=7) and implementation notes. Data analysis included a comparison of women’s baseline characteristics between the two groups, followed by the use of negative binomial regressions to test for associations between participation in the intervention and increased ANC attendance, controlling for individual characteristics and accounting for the clustering of women within clinics. Results The comparison of ANC attendance rates found that women receiving the SMS text messaging intervention attended 15% fewer ANC visits than the comparison group (P=.004), controlling for individual characteristics and clustering. Data analysis of the implementation process suggests that barriers to successful implementation include women registering very late in pregnancy, sharing their phone with others, and inconsistent explanation of the intervention to women. Conclusions These results suggest that unidirectional text messages do not encourage, and might even discourage, ANC attendance in Samoa. Interpreted with other evidence in the literature, these results suggest that SMS text messaging interventions are more effective when they facilitate better communication between patients and health workers. This study is an important contribution to our understanding of when SMS text messaging interventions are and are not effective in improving maternal health care utilization.
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Chen, Yilin, Keshet Ronen, Daniel Matemo, et al. "An Interactive Text Messaging Intervention to Improve Adherence to Option B+ Prevention of Mother-to-Child HIV Transmission in Kenya: Cost Analysis." JMIR mHealth and uHealth 8, no. 10 (2020): e18351. http://dx.doi.org/10.2196/18351.
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Background Mobile health (mHealth) approaches offer potentially affordable ways to support the care of HIV-infected patients in overstretched health care systems. However, only few studies have analyzed the costs associated with mHealth solutions for HIV care. Objective The aim of this study was to estimate the total incremental costs and incremental cost per beneficiary of an interactive SMS text messaging support intervention within a clinical trial. Methods The Mobile WAChX trial (NCT02400671) evaluates an interactive semiautomated SMS text messaging intervention to improve adherence to antiretroviral therapy and retention in care among peripartum women infected with HIV in Kenya to reduce the mother-to-child transmission of HIV. Women were randomized to receive one-way versus two-way SMS text messages. Messages were sent weekly, and these messages included motivational and educational content and visit reminders; two-way messaging enabled prompt consultation with the nurse as needed. Microcosting methods were used to collect resource-use data related to implementing the Mobile WAChX SMS text messaging intervention. At 2 sites (Nairobi and Western Kenya), we conducted semistructured interviews with health personnel to identify startup and recurrent activities by obtaining information on the personnel, supplies, and equipment. Data on expenditures and prices from project expense reports, administrative records, and published government salary data were included to estimate the total incremental costs. Using a public provider perspective, we estimated incremental unit costs per beneficiary and per contact during 2017. Results The weighted average annual incremental costs for the two-way SMS text messaging group were US $3725 per facility, US $62 per beneficiary, and US $0.85 per contact to reach 115 beneficiaries. For the one-way SMS text messaging group, the weighted average annual incremental costs were US $2542 per facility, US $41 per beneficiary, and US $0.66 per contact to reach 117 beneficiaries. The largest cost shares were for the personnel: 48.2% (US $1794/US $3725) in two-way and 32.4% (US $825/US $2542) in one-way SMS text messaging groups. Costs associated with software development and communication accounted for 29.9% (US $1872/US $6267) of the costs in both intervention arms (US $1042 vs US $830, respectively). Conclusions Cost information for budgeting and financial planning is relevant for implementing mHealth interventions in national health plans. Given the proportion of costs related to systems development, it is likely that costs per beneficiary will decline with the scale-up of the interventions.
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Gao, Bibu, and Wenqiang Zhang. "A Method of Combining Hidden Markov Model and Convolutional Neural Network for the 5G RCS Message Filtering." Applied Sciences 11, no. 14 (2021): 6350. http://dx.doi.org/10.3390/app11146350.
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As one of the 5G applications, rich communication suite (RCS), known as the next generation of Short Message Service (SMS), contains multimedia and interactive information for a better user experience. Meanwhile, the RCS industry worries that spammers may migrate their spamming misdeeds to RCS messages, the complexity of which challenges the filtering technology because each of them contains hundreds of fields with various types of data, such as texts, images and videos. Among the data, the hundreds of fields of text data contain the main content, which is adequate and more efficient for combating spam. This paper first discusses the text fields, which possibly contain spam information, then use the hidden Markov model (HMM) to weight the fields and finally use convolutional neural network (CNN) to classify the RCS messages. In the HMM step, the text fields are treated differently. The short texts of these fields are represented as feature weight sequences extracted by a feature extraction algorithm based on a probability density function. Then, the proposed HMM learns the weight sequence and produces a proper weight for each short text. Other text fields with fewer words are also weighted by the feature extraction algorithm. In the CNN step, all these feature weights first construct the RCS message matrix. The matrices of the training RCS messages are used as the CNN model inputs for learning and the matrices of testing messages are used as the trained CNN model inputs for RCS message property prediction. Four optimization technologies are introduced into the CNN classification process. Promising experiment results are achieved on the real industrial data.
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Jespersen, E., R. Holst, C. Franz, C. T. Rexen, H. Klakk, and N. Wedderkopp. "Overuse and traumatic extremity injuries in schoolchildren surveyed with weekly text messages over 2.5 years." Scandinavian Journal of Medicine & Science in Sports 24, no. 5 (2013): 807–13. http://dx.doi.org/10.1111/sms.12095.
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Kohli, Maulika, Elizabeth C. Pasipanodya, Jessica L. Montoya, et al. "A Culturally Adapted SMS Text Messaging Intervention to Promote Antiretroviral Therapy Adherence Among African Americans: Protocol for a Single-Arm Trial." JMIR Research Protocols 9, no. 12 (2020): e21592. http://dx.doi.org/10.2196/21592.
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Background African Americans are disproportionally affected by HIV and have poorer rates of antiretroviral therapy (ART) adherence compared to other racial or ethnic groups in the United States. Factors associated with poor HIV disease outcomes are commonly associated with sociostructural barriers that prevent engagement with and retention in HIV care. SMS text messaging interventions to promote ART adherence among predominantly non-Hispanic White persons with HIV (PWH) have been shown to be efficacious; however, limited research has been devoted to culturally tailoring interventions for underrepresented racial/ethnic groups. Considering African Americans show poorer engagement along the HIV care continuum, we developed an individualized and culturally tailored two-way SMS text messaging intervention to improve ART adherence and associated virologic suppression among African American PWH. Objective In this paper we describe the protocol of a culturally tailored individualized Texting for Adherence Building (iTAB) intervention in a 24- to 48-week, single-arm study. Methods We developed a culturally tailored iTAB intervention, which we are implementing in a 24- to 48-week, single-arm study. Participants were recruited from the Family Health Centers of San Diego (FHCSD), a federally qualified health center. Patient inclusion criteria were (1) receiving care at the FHCSD, (2) living with HIV, (3) self-identification as Black, African American, or of African ancestry, (4) English speaking, (5) age 18 or older, (6) currently on ART, and (7) able to provide informed consent. Study enrollment began in November 2017 and closed in July 2019. A total of 90 participants from the FHCSD enrolled in the iTAB intervention, and we anticipate completing data collection in July 2020. Participants were assisted in individualizing and customizing their SMS text message preferences at the baseline study visit. Self-assessment measures are collected at baseline, interim, and final study visits. Problems related to sending/receiving SMS text messages and barriers to ART adherence are assessed at each interim study visit. The FHCSD staff monitors and tracks participants’ daily SMS text message responses to ART adherence reminders using a clinical dashboard. Results We hypothesize that the proportion of individuals achieving HIV virologic suppression (viral load <40 copies/mL) will be greater at the end of the intervention period compared to the proportion prior to study implementation. Additionally, we anticipate that rates of virologic suppression at the end of the intervention among participants receiving iTAB will be comparable to those among the general FHCSD non-African American population who did not receive iTAB. Finally, we anticipate a high response rate to iTAB SMS text messages as well as positive participant feedback at the end of the intervention with regard to the acceptability of, satisfaction with, and perceived efficacy of iTAB. Conclusions The iTAB intervention is a novel individualized two-way SMS text messaging intervention that has been culturally tailored for use among African Americans with HIV. We anticipate that iTAB will demonstrate efficacy in future randomized control trials and will be supportive of medication adherence among other populations facing health disparities. International Registered Report Identifier (IRRID) DERR1-10.2196/21592