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Interpregnancy interval

Peter Wagura, Aggrey Wasunna, Ahmed Laving, Dalton Wamalwa, Paul Ng'ang'a
BACKGROUND: The World Health Organization estimates the prevalence of preterm birth to be 5-18% across 184 countries of the world. Statistics from countries with reliable data show that preterm birth is on the rise. About a third of neonatal deaths are directly attributed to prematurity and this has hindered the achievement of Millennium Development Goal-4 target. Locally, few studies have looked at the prevalence of preterm delivery and factors associated with it. This study determined the prevalence of preterm birth and the factors associated with preterm delivery at Kenyatta National Hospital in Nairobi, Kenya...
April 19, 2018: BMC Pregnancy and Childbirth
Q Zhang, L L Wang, R H Bai, S N Dang, H Yan
Objective: To understand the effect of interpregnancy interval (IPI) of childbearing aged women on the birth weight of single live birth neonates in Shaanxi province. Methods: A questionnaire survey was conducted among the childbearing aged women selected through multistage stratified random sampling in Shaanxi during 20l0-2013, all the childbearing aged women had definite pregnancy outcomes. The interpregnancy interval of the childbearing aged women and the birth weight of the newborns were used as the independent variables and dependent variables respectively in multiple linear regression model and quantile regression model, and confounding factors were controlled...
March 10, 2018: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
Quetzal A Class, Martin E Rickert, Henrik Larsson, Anna Sara Öberg, Ayesha C Sujan, Catarina Almqvist, Paul Lichtenstein, Brian M D'Onofrio
Background: Causal interpretation of associations between short interpregnancy interval (the duration from the preceeding birth to the conception of the next-born index child) and the offspring's psychological and educational problems may be influenced by a failure to account for unmeasured confounding. Methods: Using population-based Swedish data from 1973-2009, we estimated the association between interpregnancy interval and outcomes [autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), severe mental illness, suicide attempt, criminality, substance-use problem and failing grades] while controlling for measured covariates...
March 16, 2018: International Journal of Epidemiology
Lauren Maxwell, Arijit Nandi, Andrea Benedetti, Karen Devries, Jennifer Wagman, Claudia García-Moreno
Introduction: Inadequately spaced pregnancies, defined as pregnancies fewer than 18 months apart, are linked to maternal, infant, and child morbidity and mortality, and adverse social, educational and economic outcomes in later life for women and children. Quantifying the relation between intimate partner violence (IPV) and women's ability to space and time their pregnancies is an important part of understanding the burden of disease related to IPV. Methods: We applied Cox proportional hazards models to monthly data from the Demographic and Health Surveys' Reproductive Health Calendar to compare interpregnancy intervals for women who experienced physical, sexual and/or emotional IPV in 29 countries...
2018: BMJ Global Health
Sukanya Srinivasan, Lisa Schlar, Stephanie E Rosener, Daniel J Frayne, Scott G Hartman, Michael A Horst, Jessica L Brubach, Stephen Ratcliffe
BACKGROUND: Preterm birth, birth defects, and unintended pregnancy are major sources of infant and maternal morbidity, mortality, and associated resource use in American health care. Interconception Care (ICC) is recommended as a strategy to improve birth outcomes by modifying maternal risks between pregnancies, but no established model currently exists. The Interventions to Minimize Preterm and Low Birth Weight Infants through Continuous Improvement Techniques (IMPLICIT) Network developed and implemented a unique approach to ICC by assessing mothers during their baby's well-child visits (WCVs) up to 24 months...
March 2018: Journal of the American Board of Family Medicine: JABFM
Gabriel Conzuelo-Rodriguez, Ashley I Naimi
BACKGROUND: Short interpregnancy intervals (IPI) are associated with poor birth outcomes. Often, only livebirths are considered to estimate IPI. The objective of our work is to explore whether the associations between demographic, behavioural, and pregnancy variables and IPI change when events other than livebirth are included. METHODS: We used data from the 2006-10 and 2011-13 period of the National Survey of Family Growth (NSFG). We defined IPI using the conception date of the index pregnancy and the event date of the previous one ending in (i) livebirth; (ii) stillbirth; (iii) miscarriage; (iv) abortion; or (v) any of these events...
March 9, 2018: Paediatric and Perinatal Epidemiology
Qi Zhang, Shaonong Dang, Ruhai Bai, Baibing Mi, Lingling Wang, Hong Yan
We used quantile regression (QR) to assess if the length of the interpregnancy interval (IPI) after live birth and pregnancy termination is associated with weight in subsequent birth. The analysis included 9663 and 3400 women with IPI after live birth and pregnancy termination, respectively. For the women after live birth, an IPI < 12 months had negative effects at the 5th and 10th quantiles of the birth weight (BW) distribution. When the BW was beyond the 90th quantile, the BWs of newborns whose mothers with longer IPI (36-59 months) were higher than the reference group (18~23 months)...
March 7, 2018: Scientific Reports
Katherine A Ahrens, Marie Thoma, Casey Copen, Brittni Frederiksen, Emily Decker, Susan Moskosky
BACKGROUND: The relationship between unintended pregnancy and interpregnancy interval (IPI) across maternal age is not clear. METHODS: Using data from the National Survey of Family Growth, we estimated the percentages of pregnancies that were unintended among IPI groups (<6, 6-11, 12-17, 18-23, 24+ months) by maternal age at last live birth (15-19, 20-24, 25-29, 30-44years). RESULTS: Approximately 40% of pregnancies were unintended and 36% followed an IPI<18months...
March 1, 2018: Contraception
Shenghui Li, Jin Hua, Haifa Hong, Yanling Wang, Jun Zhang
Interpregnancy interval and maternal age are associated with birth outcomes. However, it is unknown regarding their long-term effects on child health. We aim to assess the associations between interpregnancy interval and offspring's body mass index (BMI) and blood pressure (BP) at age of 7 years and to examine the role of maternal age in the associations. A secondary analysis was performed among 2604 mother-infant pairs in the prospective National Collaborative Perinatal Project, in which the children were followed up until 7 yrs of age...
February 23, 2018: Journal of Human Hypertension
Elizabeth E Krans, Joo Yeon Kim, Alton Everette James, David K Kelley, Marian Jarlenski
OBJECTIVE: The purpose of this study was to describe postpartum contraceptive utilization patterns among women with OUD and evaluate the relationship between postpartum contraceptive method choice and interpregnancy interval. METHODS: A retrospective cohort study was conducted with women in Pennsylvania Medicaid with a diagnosis of OUD between 2008 and 2013. Postpartum contraceptive use within 90 days after delivery was identified through claims data and categorized by effectiveness (highly-effective, effective, and no method observed)...
February 14, 2018: Drug and Alcohol Dependence
Jack Stevens, Robyn Lutz, Ngozi Osuagwu
No abstract text is available yet for this article.
February 2018: American Journal of Public Health
Emilie Rune Hegelund, Stine Kjaer Urhoj, Anne-Marie Nybo Andersen, Laust Hvas Mortensen
Objectives To investigate the associations of interpregnancy interval (IPI) with miscarriage, stillbirth, preterm delivery and small for gestational age delivery. Methods The study population comprised all women who had a live birth and at least one subsequent pregnancy in Denmark during the period from 1994 to 2010 (N = 328,577). Linear regression was used to estimate risk differences for miscarriage, stillbirth, preterm delivery and small for gestational age delivery according to IPI. Results The results were heterogeneous: the risk of miscarriage increased monotonically with the length of the IPI...
February 8, 2018: Maternal and Child Health Journal
Luis R Hoyos, Gustavo Vilchez, Jenifer E Allsworth, Mokerrum Malik, Javier Rodriguez-Kovacs, Henry Adekola, Awoniyi O Awonuga
OBJECTIVE: To evaluate pregnancy outcomes in patients with a history of wedge resection for interstitial ectopic pregnancy (WRIEP). METHODS: Retrospective cohort study of pregnancies with a history of WRIEP from 2000-2013 at two inner city hospitals in Detroit, MI. Pregnant matched controls (1:3) were selected and included patients with history of surgically treated tubal ectopic pregnancy and delivered patients without history of ectopic pregnancy. Pregnancy outcomes, including a composite, were compared among the groups...
February 4, 2018: Journal of Maternal-fetal & Neonatal Medicine
Melissa Kuwahara, Kelly Yamasato, Mary Tschann, Bliss Kaneshiro
We conducted this study to compare outcomes for pregnancies conceived ≤6 months after dilation and evacuation (D&E) with those conceived >6 months after D&E. This retrospective cohort study included women who underwent D&E (14-26 weeks) and were readmitted with a subsequent pregnancy. The primary outcome was the rate of preterm birth (<37 weeks). We identified 737 D&Es with 214 subsequent pregnancies. Outcomes were available for 85.5% of these pregnancies. Preterm birth <37 weeks occurred in 9...
February 1, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Hannah Kluckow, Leeanne Panisi, Jessie Larui, Anna Jatobatu, Dukyeon Kim, Laura Hodges, Kirsten I Black
BACKGROUND: The Solomon Islands is a Pacific nation with a maternal mortality of 114 per 100 000 births. Around 57% of pregnancies are unintended and only 15% of women attend their first antenatal visit in the first 12 weeks as recommended by the World Health Organization. AIMS: We sought to examine the socio-demographic predictors of unintended pregnancy and late antenatal booking (>18 weeks) among women attending antenatal care in Honiara. MATERIALS AND METHODS: From January 2014 to May 2015 we undertook a cross-sectional survey using a structured questionnaire on women presenting to the National Referral Hospital and community clinics in Honiara for antenatal care...
January 31, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
Caitlin Cross-Barnet, Brigette Courtot, Ian Hill, Sarah Benatar, Morgan Cheeks, Jenny Markell
BACKGROUND: Closely spaced, unintended pregnancies are common among Medicaid beneficiaries and create avoidable risks for women and infants, including preterm birth. The Strong Start for Mothers and Newborns Initiative, a program of the Center for Medicare and Medicaid Innovation, intended to prevent preterm birth through psychosocially based enhanced prenatal care in maternity care homes, group prenatal care, and birth centers. Comprehensive care offers the opportunity for education and family planning to promote healthy pregnancy spacing...
March 2018: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
Patience A Afulani, Molly Altman, Joseph Musana, May Sudhinaraset
BACKGROUND: Globally, prematurity is the leading cause of death in children under the age of 5. Many efforts have focused on clinical approaches to improve the survival of premature babies. There is a need, however, to explore psychosocial, sociocultural, economic, and other factors as potential mechanisms to reduce the burden of prematurity. Women's empowerment may be a catalyst for moving the needle in this direction. The goal of this paper is to examine links between women's empowerment and prematurity in developing settings...
November 8, 2017: BMC Pregnancy and Childbirth
A L Rietveld, P W Teunissen, B M Kazemier, C J M De Groot
OBJECTIVE: The objective of this study is to investigate the association between interpregnancy interval and success of vaginal birth after cesarean. STUDY DESIGN: Retrospective 10-year cohort study of pregnant women with one prior cesarean, who opted for trial of labor (n=36 653). Interpregnancy interval is the time between cesarean and next conception. Vaginal birth success rates were compared between six interval groups. Analysis was performed pooled as well as stratified for induction of labor...
November 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
Alexandra C Sundermann, Katherine E Hartmann, Sarah H Jones, Eric S Torstenson, Digna R Velez Edwards
OBJECTIVE: To assess whether interpregnancy interval length after a pregnancy loss is associated with risk of repeat miscarriage. METHODS: This analysis includes pregnant women participating in the Right From the Start (2000-2012) community-based prospective cohort study whose most recent pregnancy before enrollment ended in miscarriage. Interpregnancy interval was defined as the time between a prior miscarriage and the last menstrual period of the study pregnancy...
December 2017: Obstetrics and Gynecology
Quetzal A Class, Martin E Rickert, Anna S Oberg, Ayesha C Sujan, Catarina Almqvist, Henrik Larsson, Paul Lichtenstein, Brian M DʼOnofrio
OBJECTIVE: To examine associations among interpregnancy interval, the duration from the preceding birth to the conception of the next-born index child, and adverse birth outcomes using designs that adjust for measured and unmeasured factors. METHODS: In this prospective cohort study, we used population-based Swedish registries from 1973 to 2009 to estimate the associations between interpregnancy interval (referent 18-23 months) and adverse birth outcomes (ie, preterm birth [less than 37 weeks of gestation], low birth weight [LBW; less than 2,500 g], small for gestational age [SGA; greater than 2 SDs below average weight for gestational age])...
December 2017: Obstetrics and Gynecology
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