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Journal articles on the topic 'Quartiles'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Kim, Young Jin, Chang-Mo Oh, Sung Keun Park, et al. "Fasting blood glucose and risk of incident pancreatic cancer." PLOS ONE 17, no. 10 (2022): e0274195. http://dx.doi.org/10.1371/journal.pone.0274195.

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Background The number of patients with diabetes and impaired fasting blood glucose in Korea is rapidly increasing compared to the past, and other metabolic indicators of population are also changed in recent years. To clarify the mechanism more clearly, we investigated the association between fasting blood glucose and incidence of pancreatic cancer in this retrospective cohort study. Methods In Korea National Health Information Database, 19,050 participants without pancreatic cancer in 2009 were enrolled, and followed up until 2013. We assessed the risk of incident pancreatic cancer according

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Delgado-Vazquez, Angel Jesus, Hector Garcia-Alcala, and Juan Carlos Alberto Marin-Corte. "ODP237 Relation Between Long Term Glycemic Variability (LTGV) and HbA1c Time-In-Range in Diabetic Patients." Journal of the Endocrine Society 6, Supplement_1 (2022): A331—A332. http://dx.doi.org/10.1210/jendso/bvac150.687.

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Abstract Background LTGV has become, aside with mean Hba1c level, a new measure of glycemic control. Despite the burden of information about its association to long term diabetic complications, in real-life is uncertain its relation to glycemic control. Objective to describe in real-life conditions the relation between long term LTGV and glycemic control. Methods from our clinical laboratory data base we selected those patients who attended for HPLC´s determination of HbA1c for at least two times in 2 consecutive years. We discard those results from patients with anemia or kidney failure. To e

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Emanuel, Robyn M., Amylou Constance Dueck, Holly Lynn Geyer, et al. "Myeloproliferative (MPN) Symptom Burden Response Thresholds: Assessment Of MPN-SAF TSS Quartiles As Potential Markers Of Symptom Response." Blood 122, no. 21 (2013): 4067. http://dx.doi.org/10.1182/blood.v122.21.4067.4067.

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Abstract Background We have previously reported on the significant, but heterogeneous baseline MPN symptom burden among an international sample of MPN patients (including essential thrombocythemia (ET), polycythemia vera (PV), and myelofibrosis (MF)) utilizing the MPN Symptom Assessment Form (MPN-SAF) and the derivative Total Symptom Score (MPN-SAF TSS). Recent clinical trials have sought to determine optimal MPN symptom response criteria, such as absolute 10 point improvement in MPN SAF TSS for ET/PV (ELN Criteria, Barosi et. al. Blood 2013) and 50% reduction in MPN-SAF TSS for MF (IWG-MRT, T

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Venegas, Mayra Jacuviske, and Leticia Lessa Mansur. "Verbal fluency: Effect of time on item generation." Dementia & Neuropsychologia 5, no. 2 (2011): 104–7. http://dx.doi.org/10.1590/s1980-57642011dn05020008.

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Abstract The distribution of item generation/time in the performance of elderly on verbal fluency (VF) remains unknown. Objective: To analyze the number of items, their distribution and impact of the first quartile on the final test result. Methods: 31 individuals performed the tests (average age=74 years; schooling=8.16 years). Results: The number of items produced in the first quartile differed from the other quartiles for both semantic and phonologic VF where 40% of items were produced in the first quartile. No effect of age was found and schooling influenced performance on the first and se

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Kim, Do-Won, Jeongwon Ock, Kyong-Whan Moon, and Choong-Hee Park. "Association between Pb, Cd, and Hg Exposure and Liver Injury among Korean Adults." International Journal of Environmental Research and Public Health 18, no. 13 (2021): 6783. http://dx.doi.org/10.3390/ijerph18136783.

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Background: Exposure to lead (Pb), cadmium (Cd), and mercury (Hg) has been reported to be associated with liver-related diseases. However, studies examining the association between heavy metal exposure and liver injury in a large population are scant and characterized by inconsistent results. This study aimed to evaluate the association between levels of heavy metal exposure and liver injury in the general population. Methods: Data for 2953 participants aged 19 years or more obtained from the Korean National Environmental Health Survey (KoNEHS) Cycle 3 (2015–2017) were used. The associations b

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Unlu, Ozan, Sevda Aygun, Hilbrahim Petekkaya, et al. "Association of the neutrophil to lymphocyte ratio with survival patients with in metastatic breast cancer." Journal of Clinical Oncology 31, no. 15_suppl (2013): e11544-e11544. http://dx.doi.org/10.1200/jco.2013.31.15_suppl.e11544.

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e11544 Background: Identification of simple and measurable prognostic factors is an important issue in treatment evaluation of breast cancer. Although various markers are considered while making a decision to treatment modality, clinicians investigate for new prognostic factors for reason of highly variable responses of individuals. Therefore, this study estimates the survival probability of the neutrophil to lymphocyte ratio (NLR) for patients with metastatic breast cancer. Methods: We included the patients with metastatic breast carcinoma who were treated for metastasis. NLR were calculated

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Park, Soo-Jung, Sang-Hoon Lee, Doo-Yeoun Cho, Kwang-Min Kim, Duk-Joo Lee, and Bom-Taeck Kim. "Hair Calcium Concentration is Associated with Calcium Intake and Bone Mineral Density." International Journal for Vitamin and Nutrition Research 83, no. 3 (2013): 154–61. http://dx.doi.org/10.1024/0300-9831/a000160.

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Calcium concentration in hair, representing intracellular calcium levels, is associated with systemic diseases such as coronary artery disease. To date, there are no previous studies which investigate the regulation of hair calcium levels. The aim of the study is to investigate whether hair calcium concentration is related to calcium intake and calcium content in bone - bone mineral density (BMD). An observational research study was conducted with 55 women over the age of 20 who visited a university hospital in Suwon, Korea. The average age of the women was 51.45. Depending on the concentratio

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Steinberg, Martin H., Zhi-Hong Lu, Franca B. Barton, Michael L. Terrin, Samuel Charache, and George J. Dover. "Fetal Hemoglobin in Sickle Cell Anemia: Determinants of Response to Hydroxyurea." Blood 89, no. 3 (1997): 1078–88. http://dx.doi.org/10.1182/blood.v89.3.1078.

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Abstract Hydroxyurea (HU) can increase fetal hemoglobin (HbF) in sickle cell anemia (HbSS). To identify determinants of the HbF response, we studied 150 HU-treated patients grouped by quartiles of change in HbF from baseline to 2 years. Half of the HU-assigned patients had long-term increments in HbF. In the top two quartiles, HbF increased to 18.1% and 8.8%. These patients had the highest baseline neutrophil and reticulocyte counts, and largest treatment-associated decrements in these counts. In the lower two quartiles, 2-year HbF levels (4.2% and 3.9%) and blood counts changed little from ba

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Waldron, Mark, Jamie Highton, Matthew Daniels, and Craig Twist. "Preliminary Evidence of Transient Fatigue and Pacing During Interchanges in Rugby League." International Journal of Sports Physiology and Performance 8, no. 2 (2013): 157–64. http://dx.doi.org/10.1123/ijspp.8.2.157.

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Purpose:This study aimed to quantify changes in heart rate (HR) and movement speeds in interchanged and whole-match players during 35 elite rugby league performances.Methods:Performances were separated into whole match, interchange bout 1, and interchange bout 2 and further subdivided into match quartiles. Mean percentages of peak HR (%HRpeak) and total and high-intensity running (> 14 km/h) meters per minute (m/min) were recorded.Results:For whole-match players, a decline in high-intensity m/min and %HRpeak was observed between successive quartiles (P < .05). High-intensity m/min during

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Sheth, Veeral, Mitchell D'Rozario, Shamika Gune, and Steven Blotner. "Fluctuations in central foveal thickness and association with vision outcomes with anti-VEGF therapy for nAMD: HARBOR post hoc analysis." BMJ Open Ophthalmology 7, no. 1 (2022): e000957. http://dx.doi.org/10.1136/bmjophth-2021-000957.

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ObjectiveTo evaluate correlations between variability in central foveal thickness (CFT) and vision with ranibizumab in a HARBOR post hoc analysis.Methods and analysisPatients with neovascular age-related macular degeneration (nAMD; N=1097) received monthly or as-needed (PRN) ranibizumab (0.5 or 2.0 mg) for 24 months. Fluctuation scores were used to assess CFT variability; every time CFT increased and then decreased (or vice versa), numeric value of the change was added to the score. Magnitude of change <50 µm was considered clinically insignificant and did not count towards the score. Fluct

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Joh, Joon-Sung, Mo-Yeol Kang, and Jun-Pyo Myong. "Dose–Response Relationship between Environmental Exposure to Nickel and Pulmonary Function in the Korean General Population Aged 40 or Older." International Journal of Environmental Research and Public Health 18, no. 13 (2021): 7016. http://dx.doi.org/10.3390/ijerph18137016.

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Nickel is a well-known skin allergen; however, few studies to date have investigated the association between nickel exposure and lung function impairment. The present study, therefore, evaluated the relationship between blood nickel concentrations and lung function profiles in the Korean general population (n = 1098). Dose–response relationships between blood nickel quartiles and pulmonary function were assessed by sex in multivariate models, after adjustment for potentially confounding factors such as age, height, and smoking status. Quartiles of blood nickel concentrations were significantly

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Cortes, Maria Carolina, Luis Vicente Gonzalez, Laura H. Gunn, et al. "Assessment of Research Topic Prevalence by Journal Impact Quartile in Oral Health Sciences Using Bayesian Methods." SAGE Open 11, no. 3 (2021): 215824402110318. http://dx.doi.org/10.1177/21582440211031868.

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The relationship between research topics and academic prestige of journals is of relevance to assess venues for current research as well as trending areas of new research. This is of special relevance for those developing a research agenda or with defined productivity outcome expectations. This manuscript extracts prevalent topics using titles and abstracts from more than 10,000 manuscripts, constituting all published research in International Scientific Indexing (ISI) journals within the oral health specialties of oral surgery, orthodontics, and periodontics during 2018. Journals are clustere

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Alvarsson, Michael, Valdemar E. Grill, Alexandre Wajngot, Erol Cerasi, and Suad Efendic. "Long-term stability of low insulin responses to glucose in non-diabetic subjects." Acta Endocrinologica 127, no. 1 (1992): 33–37. http://dx.doi.org/10.1530/acta.0.1270033.

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We investigated the stability of the insulin response to glucose in healthy subjects by making retrospective comparisons of insulin responses after two 60 min glucose infusion tests performed many years apart. The subjects (N =49) were divided into two lower and two higher quartiles as assessed by the incremental 0–10 min insulin area during the initial glucose infusion test. Ages were initially 32.3±2.8 years in lower quartiles and 26.6±1.1 in higher quartiles and body mass indexes 21.6±0.6 kg/m2 and 21.8±0.5, respectively. The interval between the first and second glucose infusion tests was

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Vassileva, Christina M., Theresa Boley, Joseph Standard, Stephen Markwell, and Stephen Hazelrigg. "Relationship between Patient Income Level and Mitral Valve Repair Utilization." Heart Surgery Forum 16, no. 2 (2015): 89. http://dx.doi.org/10.1532/hsf98.20121105.

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<p><b>Background:</b> The superiority of mitral valve (MV) repair is well established with respect to long-term survival, preservation of ventricular function, and valve-related complications. The relationship between patient income level and the selection of MV procedure (repair versus replacement) has not been studied.</p><p><b>Methods:</b> The 2005 to 2007 Nationwide Inpatient Sample database was searched for patients ? 30 years old with MV repair or replacement; patients with ischemic and congenital MV disease were excluded. Patients were stratifie

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J, Moncada-Jiménez, Araya-Ramírez F, Taylor J. K, and Grandjean P.W. "The Association Between Abdominal Fat, Cardiorespiratory Fitness, and Clinical Markers of Metabolic Syndrome." International Journal of Physical Education, Fitness and Sports 11, no. 1 (2022): 10–19. http://dx.doi.org/10.34256/ijpefs2212.

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Our purpose was to determine the association between abdominal fat and cardiorespiratory fitness (CRF) on markers of metabolic syndrome (MetS) total cholesterol (TC), high-density lipoprotein (HDL-C), low-density lipoprotein (LDL-C), triglycerides (TG), glucose, and blood pressure. We conducted a retrospective study on 165 adults (108 men) in which correlations between waist girth (WG), CRF and blood variables were determined. The cohort was partitioned by gender into quartiles and again by WG and differences in markers of MetS were compared across quartiles by ANOVA and by ANCOVA to determine

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Sun, Tienan, Chenghui Cai, Hua Shen, et al. "Anion Gap Was Associated with Inhospital Mortality and Adverse Clinical Outcomes of Coronary Care Unit Patients." BioMed Research International 2020 (August 28, 2020): 1–11. http://dx.doi.org/10.1155/2020/4598462.

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Background. Anion gap (AG) has been proved to be associated with prognosis of many cardiovascular diseases. This study is aimed at exploring the association of AG with inhospital all-cause mortality and adverse clinical outcomes in coronary care unit (CCU) patients. Method. All data of this study was extracted from Medical Information Mart for Intensive Care III (MIMIC-III, version 1.4) database. All patients were divided into four groups according to AG quartiles. Primary outcome was inhospital all-cause mortality. Lowess smoothing curve was drawn to describe the overall trend of inhospital m

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Yoon, Hee-Young, Han-Na Kim, Su Hwan Lee, et al. "The Relationship between Platelet Count and Host Gut Microbiota: A Population-Based Retrospective Cross-Sectional Study." Journal of Clinical Medicine 8, no. 2 (2019): 230. http://dx.doi.org/10.3390/jcm8020230.

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Platelet count reflects the severity and prognosis of multiple diseases. Additionally, alterations in gut microbiota have been linked to several chronic diseases. The purpose of this study was to investigate the association between gut microbiota and platelet count. We selected 1268 subjects with fecal 16S RNA gene sequencing data from a Healthcare Screening Center cohort. Based on the third quartile of platelets (277 × 109/L), we compared the gut microbiota between the upper quartile (n = 321) and lower three quartiles groups (n = 947). The upper quartile group had lower alpha diversity based

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Hayrov, Roman. "Socio-economic state of the Republic of Mordovia." Russian Journal of Management 12, no. 4 (2025): 645–53. https://doi.org/10.29039/2500-1469-2024-12-4-645-653.

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The article considers the socio-economic indicators characterizing the economy of the Republic of Mordovia, shows the place of the republic among other constituent entities of the Russian Federation using their division into quartiles. The Republic of Mordovia occupies mainly 1 quartile according to 30 main indicators of socio-economic development of the regions, estimated by Rosstat. The average value of the quartile indicator for the Republic of Mordovia is 1.58. In 3 quartiles, the Republic of Mordovia is located in terms of agricultural products and incl. crop production, in 4 quartiles -

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Chung, Jin-Wook, Dilaram Acharya, Jitendra Kumar Singh, and Joon Sakong. "Association of Blood Mercury Level with Liver Enzymes in Korean Adults: An Analysis of 2015–2017 Korean National Environmental Health Survey." International Journal of Environmental Research and Public Health 20, no. 4 (2023): 3290. http://dx.doi.org/10.3390/ijerph20043290.

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Increased liver enzymes as a result of exposure to mercury and their toxic effects are not well understood in Korea at the population level. The effect of blood mercury concentration on alanine aminotransferase (ALT) and aspartate aminotransferase (AST) was evaluated after adjusting for sex, age, obesity, alcohol consumption habit, smoking, and exercise parameters in 3712 adults. The risk of abnormal liver function was measured using a multiple logistic regression analysis. Blood mercury concentration was divided into quartiles, and liver enzyme levels were compared for each quartile. ALT and

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Yang, Hyo-Joon, Yoosoo Chang, Soo-Kyung Park, et al. "Sex Differences in the Relation between Waist Circumference within the Normal Range and Development of Reflux Esophagitis." Journal of Clinical Medicine 8, no. 1 (2019): 67. http://dx.doi.org/10.3390/jcm8010067.

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We examined the association of abdominal obesity and waist circumference within normal range with the incidence of reflux esophagitis, separately in men and women. This cohort study involved 142,679 Korean adults without reflux esophagitis, who underwent upper endoscopy at baseline and during follow-up. Waist circumference was categorized into the following quartiles: <80, 80.1–85, 85.1–90, and ≥90.1 cm in men; and <69.3, 69.3–74, 74.1–79.5, and ≥79.6 cm in women. During the 551,877.8 person-years of follow-up, 29,509 participants developed reflux esophagitis. The association between wai

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Suzuki, Kazushi, Daisuke Koide, Kurumi Fujii, Tsutomu Yamazaki, Shoji Tsuji, and Atsushi Iwata. "Elevated Serum Uric Acid Levels Are Related to Cognitive Deterioration in an Elderly Japanese Population." Dementia and Geriatric Cognitive Disorders Extra 6, no. 3 (2016): 580–88. http://dx.doi.org/10.1159/000454660.

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Aims: The association between serum uric acid (UA) levels and cognitive function is controversial since UA can be a risk factor for cerebral ischemia as well as acting as a neuroprotective antioxidant. Methods: We conducted a cross-sectional analysis of 228 elderly participants and examined neuropsychological test results, clinical data as well as brain magnetic resonance imaging data. Patients: Overall, 64 participants were diagnosed with cognitive deterioration. To control for the effect of sex differences, 2 independent sets of single-variable and multivariate logistic regression analyses w

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Chen, Ming, Amie Goodin, Hong Xiao, Qiong Han, Driss Raissi, and Joshua Brown. "Hospitalization metrics associated with hospital-level variation in inferior vena cava filter utilization for patients with venous thromboembolism in the United States: Implications for quality of care." Vascular Medicine 23, no. 4 (2018): 365–71. http://dx.doi.org/10.1177/1358863x18768685.

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Variation in the use of inferior vena cava filters (IVCFs) across hospitals has been observed, suggesting differences in quality of care. Hospitalization metrics associated with venous thromboembolism (VTE) patients have not been compared based on IVCF utilization rates using a national sample. We conducted a descriptive retrospective study using the Nationwide Readmissions Database (NRD) to delineate the variability of hospitalization metrics across the hospital quartiles of IVCF utilization for VTE patients. The NRD included all-payer administrative inpatient records drawn from 22 states. Ad

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Jian, Guihua, Wenjun Lin, Niansong Wang, Junnan Wu, and Xianfeng Wu. "Urine Albumin/Creatinine Ratio and Microvascular Disease in Elderly Hypertensive Patients without Comorbidities." BioMed Research International 2021 (February 13, 2021): 1–8. http://dx.doi.org/10.1155/2021/5560135.

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Objectives. A high urine albumin/creatinine ratio (UACR) is associated with microvascular disease in hypertensive patients. However, hypertensive patients frequently have other comorbidities. Thus, it is difficult to distinguish the role of UACR from that of comorbidities in microvascular disease. The aim of this study was to evaluate the association between UACR and microvascular disease in elderly hypertension patients without comorbidities. Methods. A cross-sectional cohort study of 2252 essential hypertension patients aged 65-94 years without comorbidities between January 1, 2016, and Dece

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Nogi, Shinpei, Shu-ichi Fujita, Yusuke Okamoto, et al. "Serum uric acid is associated with cardiac diastolic dysfunction among women with preserved ejection fraction." American Journal of Physiology-Heart and Circulatory Physiology 309, no. 5 (2015): H986—H994. http://dx.doi.org/10.1152/ajpheart.00402.2015.

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Serum uric acid (SUA) is associated with the severity and prognosis of systolic heart failure. We investigated the potential association between SUA and cardiac diastolic dysfunction among total of 744 cardiac patients (202 women and 542 men) who had preserved left ventricular ejection fraction. Presence of diastolic dysfunction was assessed by echocardiographic data, plasma B-type natriuretic peptide concentration, and left ventricular hypertrophy. Univariate analysis showed that the prevalence of diastolic dysfunction increased with increasing SUA value in women, but not in men. When sex-non

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Wilkinson, David, Heather McElroy, Justin Beilby, et al. "Are socio-economically disadvantaged Australians making more or less use of the Enhanced Primary Care Medicare Benefit Schedule item numbers?" Australian Health Review 26, no. 3 (2003): 43. http://dx.doi.org/10.1071/ah030043b.

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We aimed to examine the relationship between levels of socio-economic disadvantage (measured by the Socio EconomicIndexes for Areas [SEIFA] used by the Australian Bureau of Statistics) and uptake of the Enhanced Primary Care(EPC) item numbers on the Medicare Benefits Schedule. Health services are often less likely to reach those that mostneed them and so it is important to monitor whether disadvantaged communities are accessing EPC. The rates ofhealth assessments, care plans and case conferences are similar in each SEIFA quartile (from advantaged todisadvantaged populations), favouring the mor

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Esteban-Cornejo, Irene, David Martinez-Gomez, Laura Garcia-Cervantes, et al. "Objectively Measured Physical Activity During Physical Education and School Recess and Their Associations With Academic Performance in Youth: The UP&DOWN Study." Journal of Physical Activity and Health 14, no. 4 (2017): 275–82. http://dx.doi.org/10.1123/jpah.2016-0192.

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Background:This study examined the associations of objectively measured physical activity in Physical Education and recess with academic performance in youth.Methods:This cross-sectional study was conducted with 1,780 participants aged 6 to 18 years (863 girls). Physical activity was objectively measured by accelerometry and was also classified according to sex- and agespecific quartiles of physical activity intensities. Academic performance was assessed through school records.Results:Physical activity in physical education (PE) and recess was not associated with academic performance (β rangin

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Shakeri Shamsi, Fateme, and Moslem Taheri Soodejani. "Platelet Indices and Hypertension: Results from Shahedieh Cohort Study, Yazd, Iran." International Journal of Hypertension 2024 (February 13, 2024): 1–6. http://dx.doi.org/10.1155/2024/3705771.

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Introduction. Hypertension is one of the most important diseases worldwide. In this study, we aim to demonstrate the relationship between platelet indices and hypertension. Materials and Methods. We studied 9448 people in the age range of 30 to 70 years. We assessed their hypertension status, platelet count (PLT), mean platelet volume (MPV), platelet distribution width (PDW), smoking, cardiovascular disease history, diabetes status, body mass index, and creatinine levels. Hypertension status was assessed qualitatively. All platelet indices were categorized by quartiles. We then used logistic r

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Wu, Qimeng, Chun Zhou, Ziliang Ye, et al. "Relationship of several serum folate forms with the prevalence of hypertension." Precision Nutrition 2, no. 4 (2023): e00058. http://dx.doi.org/10.1097/pn9.0000000000000058.

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Background: The relationship of different serum forms of folate with the prevalence of hypertension remains uncertain. We aim to examine the association of several folate forms (5-methyltetrahydrofolate [5-mTHF], unmetabolized folic acid [UMFA], and MeFox [an oxidation product of 5-mTHF]) with the prevalence of hypertension. Methods: This cross-sectional study included 19,237 participants from the National Health and Nutrition Examination Survey 2011–2018. Hypertension was defined as systolic blood pressure ≥140 mmHg and/or diastolic blood pressure ≥90 mmHg, or a self-reported diagnosis of hyp

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Sámano, Reyna, Hugo Martínez-Rojano, Gabriela Chico-Barba, Bernarda Sánchez-Jiménez, Daniel Illescas-Zarate, and Ana Rodríguez-Ventura. "Characteristics of the Family Support Network of Pregnant Adolescents and Its Association with Gestational Weight Gain and Birth Weight of Newborns." International Journal of Environmental Research and Public Health 16, no. 7 (2019): 1222. http://dx.doi.org/10.3390/ijerph16071222.

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It has been proposed that, in the Mexican culture, family support can be a factor that contributes to protect the maternal and child health of pregnant adolescents. There may be complex associations between family support and the circumstances of a pregnancy during adolescence. The aim of the study was to analyze the association between the family support network (FSN) characteristic and the maternal and neonatal outcomes in Mexican adolescents. A cross-sectional study was conducted, and 352 pregnant adolescents participated; their FSN during pregnancy was assessed. The gestational weight gain

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Bentsen, L., C. Ovesen, A. F. Christensen, and H. Christensen. "Does the Admission Blood Pressure Associate with Short- and Long Term Outcome in Stroke Patients Treated with Thrombolysis? A Single Centre Study." International Journal of Hypertension 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/610353.

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Background. The association between outcome and elevated admission blood pressure (BP) remains uncertain in acute stroke patients. The aim of the present study was to examine the association between admission blood pressure and outcome in ischemic stroke patients treated with tissue plasminogen activator (tPA).Method. This study included patients treated with tPA within 4.5 hours after symptom onset. Four quartiles based on the admission BP values were defined. BP development of the first 12 hours was compared to outcome parameters defined as NIHSS 24 hours after tPA and mRS after 3 months.Res

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Blumer, Lawrence S., and Christopher W. Beck. "Laboratory Courses with Guided-Inquiry Modules Improve Scientific Reasoning and Experimental Design Skills for the Least-Prepared Undergraduate Students." CBE—Life Sciences Education 18, no. 1 (2019): ar2. http://dx.doi.org/10.1187/cbe.18-08-0152.

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Past studies on the differential effects of active learning based on students’ prior preparation and knowledge have been mixed. The purpose of the present study was to ask whether students with different levels of prior preparation responded differently to laboratory courses in which a guided-inquiry module was implemented. In the first study, we assessed student scientific reasoning skills, and in the second we assessed student experimental design skills. In each course in which the studies were conducted, student gains were analyzed by pretest quartiles, a measure of their prior preparation.

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Wang, Mian, Shaodi Yan, Yong Peng, Yu Shi, Jiay-Yu Tsauo, and Mao Chen. "Serum calcium levels correlates with coronary artery disease outcomes." Open Medicine 15, no. 1 (2020): 1128–36. http://dx.doi.org/10.1515/med-2020-0154.

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AbstractBackgroundEffect of serum calcium levels on prognosis of patients with coronary artery disease (CAD) is not well evaluated. We aimed to assess the associations of baseline serum calcium levels with both short-term and long-term outcomes in CAD patients.MethodsThis study included 3,109 consecutive patients with angiographically confirmed CAD. Patients were categorized into quartiles according to admission serum calcium. Multivariable regression analysis was used to determine the association of serum calcium with mortality.ResultsCompared to patients in the lowest quartile of serum calci

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Hayanga, Jeremiah A., Alena Lira, Tedi Vlahu, et al. "Lung Transplantation in Patients with High Lung Allocation Scores in the US: Evidence for the Need to Evaluate Score Specific Outcomes." Journal of Transplantation 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/836751.

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Objective.The lung allocation score (LAS) resulted in a lung transplantation (LT) selection process guided by clinical acuity. We sought to evaluate the relationship between LAS and outcomes.Methods.We analyzed Scientific Registry of Transplant Recipient (SRTR) data pertaining to recipients between 2005 and 2012. We stratified them into quartiles based on LAS and compared survival and predictors of mortality.Results.We identified 10,304 consecutive patients, comprising 2,576 in each LAS quartile (quartile 1 (26.3–35.5), quartile 2 (35.6–39.3), quartile 3 (39.4–48.6), and quartile 4 (48.7–95.7)

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Paolisso, Giuseppe, Daniela Manzella, Nicola Montano, Antonio Gambardella, and Michele Varricchio. "Plasma Leptin Concentrations and Cardiac Autonomic Nervous System in Healthy Subjects with Different Body Weights." Journal of Clinical Endocrinology & Metabolism 85, no. 5 (2000): 1810–14. http://dx.doi.org/10.1210/jcem.85.5.6511.

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Abstract Previous studies have shown that leptin stimulates sympathetic nervous system; heart rate variability (HRV) is a widely used technique for assessing the sympathovagal balance at the cardiac level. The aim of our study was to investigate a possible relationship between plasma leptin levels and the autonomic regulation using spectral analysis of HRV. In 120 healthy nonobese subjects the plasma leptin concentration was determined, and HRV was recorded at baseline and during tilt. All subjects were categorized in quartiles of plasma leptin concentration. Analysis of data showed a signific

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Azadbakht, Leila, Fahimeh Haghighatdoost, Ammar Hassanzadeh Keshteli, Bagher Larijani, and Ahmad Esmaillzadeh. "Consumption of energy-dense diets in relation to metabolic syndrome and inflammatory markers in Iranian female nurses." Public Health Nutrition 20, no. 5 (2016): 893–901. http://dx.doi.org/10.1017/s1368980016002822.

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AbstractObjectiveTo examine the relationship between dietary energy density (DED) and risk of metabolic syndrome (MetS), its components and inflammatory markers.DesignCross-sectional study. Dietary intakes were assessed using a validated dish-based semi-quantitative FFQ. DED was calculated by dividing energy intake (kcal/d) by the total weight of foods only (g/d). MetS was defined based on the National Cholesterol Education Program Adult Treatment Panel III criteria. All associations were examined in the quartiles of DED, with higher quartiles indicating more energy-dense diets.SettingIsfahan,

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de Almeida-Pititto, Bianca, Julia Ines Branda, Julia M. de Oliveira, et al. "The Predictive Value of the Triglycerides/HDL-Cholesterol Ratio for Diabetes Incidence." Endocrines 5, no. 3 (2024): 418–29. http://dx.doi.org/10.3390/endocrines5030031.

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Background: Type 2 diabetes mellitus (DM) is an important disease with an impact on public health globally. Early assessment is necessary with accessible markers, such as the TG/HDL ratio, in predicting DM. Methods: A total of 11,653 subjects from the ELSA-Brazil were included in this analysis and were reevaluated after 3.9 ± 0.6 years of follow-up. Participants were classified according to the quartiles of the TG/HDL index, stratified by sex. ANOVA with Bonferroni correction and p-for-trend analysis were used to compare groups. Cox analysis was performed with adjustments for covariables. Kapl

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Higano, Celestia S., Andrew J. Armstrong, Matthew R. Cooperberg, et al. "Analysis of the PROCEED registry by baseline prostate-specific antigen (PSA) quartiles: Preliminary analysis of real-world sipuleucel-T (sip-T) use." Journal of Clinical Oncology 34, no. 2_suppl (2016): 193. http://dx.doi.org/10.1200/jco.2016.34.2_suppl.193.

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193 Background: Sip-T is an FDA-approved, autologous cellular immunotherapy for asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer (mCRPC). Post-hoc analysis of the phase 3 IMPACT study revealed that compared with the highest baseline PSA quartile, patients (pts) in the lowest quartile treated with sip-T had a larger overall survival (OS) benefit, suggesting sip-T is most beneficial if administered earlier in the treatment of mCRPC (Schellhammer et al., Urology. 2013.). This analysis evaluated pt characteristics by PSA quartiles in PROCEED (NCT01306890). Meth

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Antelo-Pais, Paula, Miguel Ángel Prieto-Díaz, Rafael M. Micó-Pérez, et al. "Urate Levels as a Predictor of the Prevalence and Level of Cardiovascular Risk Factors: An Identificación de La PoBlación Española de Riesgo Cardiovascular y Renal Study." Biomolecules 14, no. 12 (2024): 1530. http://dx.doi.org/10.3390/biom14121530.

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(1) Background: Urate levels lower than the classical cut-off point for defining hyperuricemia can increase cardiovascular risks. The aim of this study is to determine if there is a relationship between different urate levels and classic cardiovascular risk factors (CVRFs). (2) Methods: A cross-sectional study of the inclusion visits of the patients recruited to the IBERICAN study was conducted. The patients were classified into quartiles according to their distribution of urate levels and separated by sex; the three lower points corresponded to normal levels of urate, and the highest quartile

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Bohn, Brian C., Elizabeth A. Neuner, Vasilios Athans, Jill Wesolowski, Thomas G. Fraser, and Steven M. Gordon. "2098. Applying Antimicrobial Consumption Metrics to Characterize Inpatient Stewardship Opportunities." Open Forum Infectious Diseases 6, Supplement_2 (2019): S709. http://dx.doi.org/10.1093/ofid/ofz360.1778.

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Abstract Background The purpose of this study was to evaluate antimicrobial consumption metrics as a means for differentiating patient populations and antimicrobial stewardship (AMS) opportunities. Methods This single-center, retrospective, descriptive study included all patients from January 1, 2018 to June 30, 2018 that received ≥1 day of therapy (DOT) of any antimicrobial included in the National Healthcare Safety Network Antimicrobial Use and Resistance (NHSN AUR) module. The cohort was then grouped into 4 quartiles based on DOT (Q1 lowest; Q4 highest). The primary outcome was a Lorenz Cur

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Bailey, Bruce Wayne, Pamela Borup, Larry Tucker, James LeCheminant, Matthew Allen, and Whitney Hebbert. "Steps Measured by Pedometry and the Relationship to Adiposity in College Women." Journal of Physical Activity and Health 11, no. 6 (2014): 1225–32. http://dx.doi.org/10.1123/jpah.2012-0255.

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Background:The aim of this study was to investigate the relationship between steps per day and adiposity among college women.Methods:This study was cross-sectional and included women ages 18–25. Participants wore a pedometer for 7 consecutive days. Body composition was assessed using air-displacement plethysmography. Height, weight, and waist and hip circumferences were assessed.Results:The women took 10,119 ± 2836 steps per day. When divided into quartiles by steps, the top 2 quartiles of women in the study had significantly lower BMI, percent body fat, and waist and hip circumferences than t

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Ashifa Kanafani, Eri Kurniawan, and Arif Husein Lubis. "A Move Analysis of Abstracts in a Scopus-indexed Applied Linguistics Journal from Different Quartiles." RETORIKA: Jurnal Ilmu Bahasa 8, no. 1 (2022): 1–12. http://dx.doi.org/10.55637/jr.8.1.4845.1-12.

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The competitive nature of today’s science leads to the upsurge of publication in scientific journals. Publishing in an international journal with a reputable index such as Scopus, in particular, has gained a significant emphasis. Despite this fact, studies on the rhetorical organization of the abstract section of a research article (RA) through the perspective of Scopus journal quartiles remain scant. Driven by the gap in literature, this study aims to examine whether journal’s quartile affects the rhetorical organization and linguistic realizations of the abstracts. A corpus of 40 RA abstract

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Stensvold, Anne Marie, Ninna Aggerholm-Pedersen, Anne Winther-Larsen, and Birgitte Sandfeld-Paulsen. "Pre-Treatment C-Reactive Protein Predicts Survival in Small Cell Lung Cancer Patients." Onco 1, no. 2 (2021): 114–22. http://dx.doi.org/10.3390/onco1020010.

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Improved prognostication of small cell lung cancer (SCLC) patients could strengthen the treatment strategy and, thereby, potentially improve the overall survival (OS) of these patients. C-reactive protein (CRP) has been proposed as a prognostic indicator of inferior survival, although so far, only based on data from smaller studies. Data on SCLC patients diagnosed from January 2009 to June 2018 were extracted from the Danish Lung Cancer Registry and the clinical laboratory information system. CRP measurements were divided at the clinical cut-off value of 8 mg/L or 75 nmol/L) and stratified int

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Ji, Zichen, Javier de Miguel-Díez, Christian Reynaldo Castro-Riera, et al. "Differences in the Outcome of Patients with COPD according to Body Mass Index." Journal of Clinical Medicine 9, no. 3 (2020): 710. http://dx.doi.org/10.3390/jcm9030710.

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Background: In chronic obstructive pulmonary disease (COPD), the “obesity paradox” is a phenomenon without a clear cause. The objective is to analyze the complications of COPD patients according to their body mass index (BMI). Methods: An observational study with a six-year prospective follow-up of 273 COPD patients who attended a spirometry test in 2011. Survival and acute events were analyzed according to the BMI quartiles. Results: A total of 273 patients were included. BMI quartiles were ≤24.23; 24.24–27.69; 27.70–31.25; ≥31.26. During the follow-up, 93 patients died. No differences were f

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Chamberlain, Alanna M., Aaron R. Folsom, Susan R. Heckbert, Wayne D. Rosamond, and Mary Cushman. "High-density lipoprotein cholesterol and venous thromboembolism in the Longitudinal Investigation of Thromboembolism Etiology (LITE)." Blood 112, no. 7 (2008): 2675–80. http://dx.doi.org/10.1182/blood-2008-05-157412.

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AbstractWe determined prospectively the risk of venous thromboembolism (VTE) in relation to baseline high-density lipoprotein cholesterol (HDL-c) in 19 049 participants of the Longitudinal Investigation of Thromboembolism Etiology (LITE), which was composed of 14 490 participants of the Atherosclerosis Risk in Communities (ARIC) study and 4559 participants of the Cardiovascular Health Study (CHS). In addition, we determined the risk of VTE in relation to baseline subfractions of HDL (HDL2 and HDL3) and apolipoprotein A-I (apoA-I) in 14 488 participants of the ARIC study. Age-adjusted incidence

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Hyun, Myung Han, Yuchang Lee, Byoung Geol Choi, et al. "Roles of Achieved Levels of Low-Density Lipoprotein Cholesterol and High-Sensitivity C-Reactive Protein on Cardiovascular Outcome in Statin Therapy." Cardiovascular Therapeutics 2019 (November 21, 2019): 1–10. http://dx.doi.org/10.1155/2019/3824823.

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In statin therapy, the prognostic role of achieved low-density lipoprotein cholesterol (LDL-C) and high-sensitivity C-reactive protein (hsCRP) in cardiovascular outcomes has not been fully elucidated. A total of 4,803 percutaneous coronary intervention (PCI)-naïve patients who prescribed moderate intensity of statin therapy were followed up. Total and each component of major adverse cardiovascular events (MACE) according to LDL-C and hsCRP quartiles were compared. The incidence of 5-year total MACEs in the highest quartile group according to the followed-up hsCRP was higher than that in the lo

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Moschonis, George, George P. Chrousos, Christos Lionis, Vassilis Mougios, and Yannis Manios. "Association of total body and visceral fat mass with iron deficiency in preadolescents: the Healthy Growth Study." British Journal of Nutrition 108, no. 4 (2011): 710–19. http://dx.doi.org/10.1017/s0007114511005952.

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The aim of the present study was to examine the associations of obesity, percentage body fat and visceral fat mass with body Fe status in a representative sample of 1493 schoolchildren aged 9–13 years. Anthropometric, body composition, biochemical, clinical (Tanner stage, age of menarche) and dietary intake data were collected. Fe deficiency (ID) was defined as transferrin saturation (TS) < 16 %; and Fe-deficiency anaemia (IDA) as ID with Hb < 120 g/l. Obese boys and girls and those in the highest quartiles of percentage body fat mass had significantly higher levels of serum ferritin (P

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Solon Junior, Luiz José Frota, and Luiz Vieira da Silva Neto. "INFLUENCE OF THE RELATIVE AGE EFFECT ON HEIGHT, MOTOR PERFORMANCE AND TECHNICAL ELEMENTS OF OLYMPIC VOLLEYBALL ATHLETES." Revista Brasileira de Medicina do Esporte 26, no. 3 (2020): 211–14. http://dx.doi.org/10.1590/1517-869220202603200625.

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ABSTRACT Introduction The Relative Age Effect (RAE) refers to the chronological age difference that occurs between athletes of the same age category, which can benefit individuals born in the first two quartiles of the year. This phenomenon is commonly studied in team sports, yet the results are still inconsistent, especially in volleyball. Objective This study analyzed the distribution of the number of births per quartile of Olympic volleyball athletes and whether this would influence anthropometric/motor variables and technical elements. Methods The sample consisted of 116 male athletes who

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Aftab, Blake T., Rhine R. Shen, Norma Guzman-Becerra, et al. "Correlation of Epstein-Barr virus-specific cytotoxic T lymphocyte precursors (EBV-CTLp) after tabelecleucel with response and survival in rituximab relapsing or refractory EBV+ post-transplant lymphoproliferative disease (PTLD)." Journal of Clinical Oncology 38, no. 5_suppl (2020): 38. http://dx.doi.org/10.1200/jco.2020.38.5_suppl.38.

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38 Background: EBV+ PTLD is often a fatal disease. Tabelecleucel is an investigational off-the-shelf, allogeneic T-cell immunotherapy specific for EBV antigens. Functional in vivo expansion approximated by a limiting dilution analysis of EBV-CTLp has previously been correlated to clinical response. Methods: We conducted analyses of reported peak circulating EBV-CTLp levels following tabelecleucel administration in correlation to response and safety across two studies (N=42) in rituximab refractory or relapsing EBV+ PTLD following HCT or SOT. Results: Two cohorts were defined by the lowest EBV-

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de Victo, Eduardo Rossato, Mauro Fisberg, Dirceu Solé, et al. "Joint Association between Sedentary Time and Moderate-to-Vigorous Physical Activity with Obesity Risk in Adults from Latin America." International Journal of Environmental Research and Public Health 20, no. 8 (2023): 5562. http://dx.doi.org/10.3390/ijerph20085562.

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Recent studies have shown various relationships between physical activity and the incidence of obesity, but this study critically explored the association of sedentary time (ST) and moderate-to-vigorous physical activity (MVPA) with obesity risk in adults from eight Latin American countries. ST and MVPA were assessed with accelerometers and stratified into 16 joint categories. Multivariate logistic regression models were used. The obesity risk indicators evaluated were body mass index (BMI), waist circumference (WC), and neck circumference (NC). Quartile 4 of ST and ≥300 min/week of MVPA was a

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Morrison, Craig, and Jean Reeve. "Perceptual Style and Instruction in the Acquisition of Qualitative Analysis of Movement by Majors in Elementary Education." Perceptual and Motor Skills 74, no. 2 (1992): 579–83. http://dx.doi.org/10.2466/pms.1992.74.2.579.

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This study examined the effects of videotaped instruction and perceptual style on 98 undergraduate elementary education majors' (77 women, 21 men) ability to learn to analyze movement by children. Scores from the Group Embedded Figures Test were used to stratify the subjects by quartiles. Students from each of the quartiles were randomly assigned to either the instruction or the control group. All subjects viewed a pre- and posttest and were separated for treatment. The instructed group watched a videotape of children throwing, catching, and striking while the control group did unrelated activ

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