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Academic literature on the topic 'Interval between two consecutive birth'
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Journal articles on the topic "Interval between two consecutive birth"
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Chandran, P. E. "Biological influence of infant death on fertility." Journal of Biosocial Science 21, no. 2 (1989): 217–21. http://dx.doi.org/10.1017/s0021932000017909.
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SummaryThis study examines the biological influence of infant death on subsequent fertility in three Asian countries—Indonesia, Nepal and Sri Lanka, comparing the birth interval between two consecutive births up to the sixth birth by survival status of the preceding infant among breast-feeding women not using contraception.There is consistent evidence of biological influence in each of the three countries. Infant death shortens birth intervals by up to 30%, though its influence varies between the countries.
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Nausheen, Sidrah, Maria Bhura, Kristy Hackett, et al. "Determinants of short birth intervals among married women: a cross-sectional study in Karachi, Pakistan." BMJ Open 11, no. 4 (2021): e043786. http://dx.doi.org/10.1136/bmjopen-2020-043786.
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IntroductionBirth spacing is a critical pathway to improving reproductive health. WHO recommends a minimum of 33-month interval between two consecutive births to reduce maternal, perinatal, infant morbidity and mortality. Our study evaluated factors associated with short birth intervals (SBIs) of less than 33 months between two consecutive births, in Karachi, Pakistan.MethodsWe used data from a cross-sectional study among married women of reproductive age (MWRA) who had at least one live birth in the 6 years preceding the survey (N=2394). Information regarding their sociodemographic characteristics, reproductive history, fertility preferences, family planning history and a 6-year reproductive calendar were collected. To identify factors associated with SBIs, we fitted simple and multiple Cox proportional hazards models and computed HRs with their 95% CIs.ResultsThe median birth interval was 25 months (IQR: 14–39 months), with 22.9% (833) of births occurring within 33 months of the index birth. Women’s increasing age (25–30 years (aHR 0.63 (0.53 to 0.75), 30+ years (aHR 0.29, 95% CI 0.22 to 0.39) compared with 20-24 years; secondary education (aHR 0.75, 95% CI 0.63 to 0.88), intermediate education (aHR 0.62, 95% CI 0.48 to 0.80), higher education (aHR 0.69, 95% CI 0.51 to 0.92) compared with no education, and a male child of the index birth (aHR 0.81, 95% CI 0.70 to 0.94) reduced the likelihood of SBIs. Women’s younger age <20 years (aHR 1.24, 95% CI 1.05 to 1.24) compared with 20–24 years, and those who did not use contraception within 9 months of the index birth had a higher likelihood for SBIs for succeeding birth compared with those who used contraception (aHR 2.23, 95% CI 1.93 to 2.58).ConclusionStudy shows that birth intervals in the study population are lower than the national average. To optimise birth intervals, programmes should target child spacing strategies and counsel MWRA on the benefits of optimal birth spacing, family planning services and contraceptive utilisation.
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Kudeva, Rumyana, Beth Halaas, Njeri Kagotho, Guijin Lee, and Bipasha Biswas. "Optimal birth interval and empowerment: a closer look at women's agency in Kenya." African Journal of Midwifery and Women's Health 14, no. 4 (2020): 1–10. http://dx.doi.org/10.12968/ajmw.2019.0028.
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Background/Aims Birth interval is measured by the number of months between two consecutive births, and is an important factor related to maternal and child health, family planning, and empowerment. A woman's ability to regulate time between pregnancies remains a human rights issue, especially in low- and middle-income countries. This study aimed to explore the impact of autonomous decision making and attitudes about intimate partner violence on birth interval among married/partnered women in Kenya. Methods This study analysed data from fecund women (15 − 49 years old) included in the Kenya Demographic and Health Survey. Autonomy and intimate partner violence perceptions were explored and analysed. The survey included married and partnered women. Structural equation modelling was used to determine the association between individual characteristics and optimal birth intervals. Results Women with higher permissive attitudes regarding intimate partner violence were more likely to report shorter birth intervals. Specifically, the results demonstrated that each unit increase in permissive attitudes towards domestic violence was associated with a 0.033 increase in the relative log odds of having birth intervals that were shorter than optimal. More than half of surveyed women (56%) reported using modern contraceptive methods, but 55% of them had non-optimal birth intervals. Conclusions Despite the majority of women using contraception, over half of surveyed women had non-optimal birth intervals. This calls for the expansion of education regarding contraceptive use for spacing of births. Equally, a shorter birth interval was associated with more permissive attitudes towards intimate partner violence. As perceptions of intimate partner violence may be socially constructed, targeting structural inequalities to address women's health may help this issue. Investigating data specific to Kenya will benefit the development of women's health and empowerment education strategies and interventions.
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Kudeva, Rumyana, Beth Halaas, Njeri Kagotho, Guijin Lee, and Bipasha Biswas. "Optimal birth interval and empowerment: a closer look at women's agency in Kenya." African Journal of Midwifery and Women's Health 14, no. 4 (2020): 1–10. http://dx.doi.org/10.12968/ajmw.2019.0028.
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Background/Aims Birth interval is measured by the number of months between two consecutive births, and is an important factor related to maternal and child health, family planning, and empowerment. A woman's ability to regulate time between pregnancies remains a human rights issue, especially in low- and middle-income countries. This study aimed to explore the impact of autonomous decision making and attitudes about intimate partner violence on birth interval among married/partnered women in Kenya. Methods This study analysed data from fecund women (15 − 49 years old) included in the Kenya Demographic and Health Survey. Autonomy and intimate partner violence perceptions were explored and analysed. The survey included married and partnered women. Structural equation modelling was used to determine the association between individual characteristics and optimal birth intervals. Results Women with higher permissive attitudes regarding intimate partner violence were more likely to report shorter birth intervals. Specifically, the results demonstrated that each unit increase in permissive attitudes towards domestic violence was associated with a 0.033 increase in the relative log odds of having birth intervals that were shorter than optimal. More than half of surveyed women (56%) reported using modern contraceptive methods, but 55% of them had non-optimal birth intervals. Conclusions Despite the majority of women using contraception, over half of surveyed women had non-optimal birth intervals. This calls for the expansion of education regarding contraceptive use for spacing of births. Equally, a shorter birth interval was associated with more permissive attitudes towards intimate partner violence. As perceptions of intimate partner violence may be socially constructed, targeting structural inequalities to address women's health may help this issue. Investigating data specific to Kenya will benefit the development of women's health and empowerment education strategies and interventions.
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Sushma, J. "Assessment of birth spacing among married women in Southern Karnataka." International Journal of Preclinical and Clinical Research 1, no. 1 (2020): 23–25. http://dx.doi.org/10.51131/ijpccr/v1i1.8.
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Several factors influence maternal and child health, one among which is adequate birth spacing. Studies have shown that a recommended duration of birth spacing is not being observed among a larger population of women of childbearing age. The objective of the current study is to assess the pattern of birth spacing among married women of reproductive age group. A cross-sectional study was conducted in Tilaknagar, Mysore with a sample size of 180. Descriptive statistics like frequency and proportions for data analysis were calculated using R software. Among 180 subjects, only 36.1% of respondents had adequate birth spacing (≥36months) between the first two consecutive children. Among women having a third child, 52.9% had adequate spacing between the second and the third child. Keywords: Birth interval; Spacing
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Verbeek, Lianne, Depeng P. Zhao, Arjan B. te Pas, et al. "Hemoglobin Differences in Uncomplicated Monochorionic Twins in Relation to Birth Order and Mode of Delivery." Twin Research and Human Genetics 19, no. 3 (2016): 241–45. http://dx.doi.org/10.1017/thg.2016.23.
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Aim: To determine the differences in hemoglobin (Hb) levels in the first 2 days after birth in uncomplicated monochorionic twins in relation to birth order and mode of delivery. Methods: All consecutive uncomplicated monochorionic pregnancies with two live-born twins delivered at our center were included in this retrospective study. We recorded Hb levels at birth and on day 2, and analyzed Hb levels in association with birth order, mode of delivery, and time interval between delivery of twin 1 and 2. Results: A total of 290 monochorionic twin pairs were analyzed, including 171 (59%) twins delivered vaginally and 119 (41%) twins born by cesarean section (CS). In twins delivered vaginally, mean Hb levels at birth and on day 2 were significantly higher in second-born twins compared to first-born twins: 17.8 versus 16.1 g/dL and 18.0 versus 14.8 g/dL, respectively (p < .01). Polycythemia was detected more often in second-born twins (12%, 20/166) compared to first-born twins (1%, 2/166; p < .01). Hb differences within twin pairs delivered by CS were not statistically or clinically significant. We found no association between inter-twin delivery time intervals and Hb differences. Conclusions: Second-born twins after vaginal delivery have higher Hb levels and more often polycythemia than their co-twin, but not when born by CS.
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Mendola, Pauline, Carrie Nobles, Andrew Williams, et al. "Air Pollution and Preterm Birth: Do Air Pollution Changes over Time Influence Risk in Consecutive Pregnancies among Low-Risk Women?" International Journal of Environmental Research and Public Health 16, no. 18 (2019): 3365. http://dx.doi.org/10.3390/ijerph16183365.
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Since the 2000s, air pollution has generally continued to decrease in the U.S. To investigate preterm birth (PTB) risk associated with air pollutants in two consecutive pregnancies, we estimated exposures using modified Community Multiscale Air Quality models linked to the NICHD Consecutive Pregnancy Study. Electronic medical records for delivery admissions were available for 50,005 women with singleton births in 20 Utah-based hospitals between 2002–2010. We categorized whole pregnancy average exposures as high (>75th percentile), moderate (25–75) and low (<25). Modified Poisson regression estimated second pregnancy PTB risk associated with persistent high and moderate exposure, and increasing or decreasing exposure, compared to persistent low exposure. Analyses were adjusted for prior PTB, interpregnancy interval and demographic and clinical characteristics. Second pregnancy PTB risk was increased when exposure stayed high for sulfur dioxide (32%), ozone (17%), nitrogen oxides (24%), nitrogen dioxide (43%), carbon monoxide (31%) and for particles < 10 microns (29%) versus consistently low exposure. PTB risk tended to increase to a lesser extent for repeated PTB (19–21%) than for women without a prior PTB (22–79%) when exposure increased or stayed high. Area-level changes in air pollution exposure appear to have important consequences in consecutive pregnancies with increasing exposure associated with higher risk.
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Ausbeck, Elizabeth B., Christina Blanchard, Alan T. Tita, Jeff M. Szychowski, and Lorie Harper. "Perinatal Outcomes in Women with a History of Recurrent Pregnancy Loss." American Journal of Perinatology 38, no. 01 (2020): 010–15. http://dx.doi.org/10.1055/s-0040-1713650.
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Objective This study aimed to evaluate perinatal outcomes in women with a history of recurrent pregnancy loss. Study Design Retrospective cohort study of singleton and nonanomalous gestations at ≥ 20 weeks who delivered at our academic institution. The exposed group was defined as women with a history of ≥ 2 consecutive spontaneous abortions (SABs) at < 12 weeks. These women were compared with women with a history of ≤ 1 SAB at < 12 weeks. The primary outcome was preterm birth (PTB) at < 37 weeks. Secondary outcomes included gestational age at delivery, gestational diabetes, small for gestational age birth weight, hypertensive diseases of pregnancy, fetal demise, cesarean delivery, and a composite of neonatal complications (5-minute Apgar score < 5, perinatal death, and NICU admission). Multivariable logistic regression was performed to adjust for confounders. Results Of 17,670 women included, 235 (1.3%) had a history of ≥ 2 consecutive SABs. Compared with women with a history of ≤ 1 SAB, women with ≥ 2 consecutive SABs were not more likely to have a PTB (19.6 vs. 14.0%, p = 0.01, adjusted odds ratios (AOR): 0.91, 95% confidence interval [CI]: 0.62–1.33). However, they were more likely to deliver at an earlier mean gestational age (37.8 ± 3.4 vs. 38.6 ± 2.9 weeks, p < 0.01) and to have gestational diabetes (12.3 vs. 6.6%, p < 0.01, AOR: 1.69, 95% CI: 1.10–2.59). Other outcomes were similar between the two groups. Conclusion A history of ≥ 2 consecutive SABs was not associated with an increased incidence of PTB but may be associated with gestational diabetes in a subsequent pregnancy. Key Points
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Rettaroli, Rosella, and Francesco Scalone. "Reproductive Behavior during the Pre-Transitional Period: Evidence from Rural Bologna." Journal of Interdisciplinary History 42, no. 4 (2012): 615–43. http://dx.doi.org/10.1162/jinh_a_00307.
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A longitudinal, micro-level study of the effect of socioeconomic transformations on fertility mechanisms in the rural hinterland of Bologna between 1818 and 1900 (the beginning of the demographic transition) demonstrates that the premature death of a last-born child reduces the interval between two consecutive childbirths. Thus does it confirm the importance of breast-feeding in determining birth spacing. Women living in complex sharecropping households experienced a significantly higher risk of childbirth than did women in families headed by daily wage earners. In addition, the reproductive behavior of sharecroppers seemed to be substantially invariant to short-term fluctuations in prices, whereas the laborers' group experienced a negative price effect. Both descriptive and multivariate analyses indicate a slight and gradual decrease in fertility levels during the period in question.
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Bender, Whitney, Adi Hirshberg, and Lisa Levine. "Interpregnancy Body Mass Index Changes: Distribution and Impact on Adverse Pregnancy Outcomes in the Subsequent Pregnancy." American Journal of Perinatology 36, no. 05 (2018): 517–21. http://dx.doi.org/10.1055/s-0038-1670634.
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Objective To examine the change in body mass index (BMI) categories between pregnancies and its effect on adverse pregnancy outcomes. Study Design We performed a retrospective cohort study of women with two consecutive deliveries from 2005 to 2010. Analysis was limited to women with BMI recorded at <24 weeks for both pregnancies. Standard BMI categories were used. Adverse pregnancy outcomes included preterm birth at <37 weeks, intrauterine growth restriction (IUGR), pregnancy-related hypertension, and gestational diabetes mellitus (GDM). Women with increased BMI category between pregnancies were compared with those who remained in the same BMI category. Results In total, 537 women were included, of whom 125 (23%) increased BMI category. There was no association between increase in BMI category and risk of preterm birth, IUGR, or pregnancy-related hypertension. Women who increased BMI category had an increased odds of GDM compared with women who remained in the same BMI category (6.4 vs. 2.2%; p = 0.018). The increased risk remained after controlling for age, history of GDM, and starting BMI (adjusted odds ratio: 8.2; 95% confidence interval: 2.1–32.7; p = 0.003). Conclusion Almost one-quarter of women increased BMI categories between pregnancies. This modifiable risk factor has a significant impact on the risk of GDM.