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Xiang L, Sun D, He J, Zhuang Y. Prolonged adhesiolysis to pregnancy interval is associated with placenta accreta spectrum in women with intrauterine adhesion. J OBSTET GYNAECOL 2024; 44:2378420. [PMID: 39007802 DOI: 10.1080/01443615.2024.2378420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Both the trauma of endometrium and hysteroscopic adhesiolysis can lead to a high rate of placenta accreta spectrum (PAS) in women with intrauterine adhesion (IUA). This study analysed the impact of time interval from adhesiolysis to pregnancy on PAS in IUA women. METHODS Patients diagnosed with IUA who underwent adhesiolysis in Anhui Women and Children's Medical Centre between January 2016 and December 2020 were included in this case-series study. Clinical data were obtained from electronic medical records and telephone interviews. RESULTS Among a total of 102 IUA women with successful pregnancies, 8 (7.8%) suffered from miscarriages with PAS, and 94 (92.2%), 47 with PAS and 47 without PAS, had successful delivery. The total prevalence of PAS in pregnant women with IUA was 53.9% (55/102). The average time from adhesiolysis to pregnancy in the PAS group was significantly longer than in the non-PAS group (14.2 ± 5.7 vs. 10.3 ± 4.4 months, p = 0.000). Regression analysis showed that AFS grade (OR = 7.40, 95% CI 1.38-39.73, p = 0.020) and adhesiolysis to pregnancy interval time between 12 and 24 months (OR = 12.09, 95% CI 3.76-38.83, p = 0.000) were closely related to PAS. A Kaplan-Meier analysis showed the median interval time to PAS was 16.00 months (95% CI 15.11-16.89). CONCLUSIONS We assume that prolonged adhesiolysis to pregnancy interval may be considered a significant risk factor for PAS in IUA women.
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Affiliation(s)
- Lan Xiang
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, China
| | - Duoxiang Sun
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, China
| | - Juan He
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, China
| | - Yali Zhuang
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, China
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Appiah D, Sang J, Olayemi OE, Broni EK, Baykoca-Arslan B, Ebong IA, Kim C. Infertility treatments and cyanotic congenital heart defects among livebirths in the USA: findings from a contemporary cohort. Hum Reprod 2024; 39:2115-2123. [PMID: 39008825 DOI: 10.1093/humrep/deae161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 06/07/2024] [Indexed: 07/17/2024] Open
Abstract
STUDY QUESTION Is there an elevated risk of cyanotic congenital heart defects (CCHD) among livebirths following infertility treatments? SUMMARY ANSWER In this population-based study of single livebirths, infertility treatment (either ART or non-ART) was associated with a higher prevalence of CCHD among livebirths. WHAT IS KNOWN ALREADY The use of infertility treatment has been on the rise over the past few decades. However, there are limited studies assessing the risk of major cardiac defects following infertility treatments. STUDY DESIGN, SIZE, DURATION A retrospective cohort study of livebirth data from the National Vital Statistics System (NVSS) was conducted, comprising of 9.6 million singleton livebirths among first-time mothers aged 15-49 years from 2016 to 2022. PARTICIPANTS/MATERIALS, SETTING, METHODS Information on infertility treatment use and CCHD was obtained from the health and medical information section of birth certificates, which was completed by healthcare staff after reviewing medical records. Logistic regression models were used to estimate odds ratios (OR) and 95% CI. Entropy balancing weighting analysis and probabilistic bias analysis were also performed. MAIN RESULTS AND THE ROLE OF CHANCE The proportion of births following infertility treatment increased from 1.9% (27 116) to 3.1% (43 510) during the study period. Overall, there were 5287 cases of CCHD resulting in a prevalence of 0.6 per 1000 livebirths. The prevalence was 1.2 per 1000 live births among infertility treatment users (ART: 1.1 per 1000 livebirths; non-ART: 1.3 per 1000 livebirths) while that for naturally conceived births was 0.5 per 1000 livebirths. Compared to naturally conceived births, the use of any infertility treatment (OR: 2.06, 95% CI: 1.82-2.33), either ART (OR: 2.02, 95% CI: 1.73-2.36) or other infertility treatments (OR: 2.12, 95% CI: 1.74-2.33), was associated with higher odds of CCHD after adjusting for maternal and paternal age, race and ethnicity, and education, as well as maternal nativity, marital status, source of payment, smoking status, and pre-pregnancy measures of BMI, hypertension and diabetes. This association did not differ by the type of infertility treatment (ART versus other infertility treatments) (OR: 1.04, 95% CI: 0.82-1.33, P = 0.712), and was robust to the presence of exposure and outcome misclassification bias and residual confounding. LIMITATIONS, REASONS FOR CAUTION The findings are only limited to livebirths. We did not have the capacity to examine termination data, but differential termination by mode of conception has not been supported by previous studies designed to consider it. Infertility treatment use was self-reported, leading to the potential for selection bias and misclassification for infertility treatment and CCHD. However, the association persisted when systematic bias as well as exposure and outcome misclassification bias were accounted for in the analyses. Information on the underlying etiology of infertility relating to either maternal, paternal, or both factors, data on specific types of ART and other infertility treatments, as well as information on subtypes of CCHD, were all not available. WIDER IMPLICATIONS OF THE FINDINGS In light of the increasing trend in the use of infertility treatment in the USA, and elsewhere, the finding of the current study holds significant importance for the clinical and public health of reproductive-aged individuals. The data show that the use of infertility treatment may expose offspring to elevated odds of severe congenital heart defects such as CCHD studied here. These findings cannot be interpreted causally. While our findings can assist in preconception counseling and prenatal care for pregnancies conceived by either ART or other infertility treatments, they also support some current recommendations that pregnancies resulting from infertility treatments undergo fetal echocardiography screening. STUDY FUNDING/COMPETING INTEREST(S) No funding was sought for the study. The authors declare that they have no conflict of interest. TRIAL REGISTRAION NUMBER N/A.
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Affiliation(s)
- Duke Appiah
- Department of Public Health, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Julie Sang
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Olumakinwa E Olayemi
- Department of Public Health, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Eric K Broni
- Division of Maternal Fetal Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Imo A Ebong
- Division of Cardiovascular Medicine, University of California, Davis, Sacramento, CA, USA
| | - Catherine Kim
- Departments of Medicine and Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
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Ye S, Huang X, Fan D, Chen G, Li P, Rao J, Zhou Z, Guo X, Liu Z, Lin D. Association between interpregnancy interval and adverse perinatal outcomes among subsequent twin pregnancies: a nationwide population-based study. Am J Obstet Gynecol MFM 2024; 6:101439. [PMID: 39079615 DOI: 10.1016/j.ajogmf.2024.101439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/13/2024] [Accepted: 07/11/2024] [Indexed: 08/23/2024]
Abstract
BACKGROUND The existing evidence on the association between interpregnancy interval (IPI) and pregnancy outcomes primarily focuses on singleton pregnancies, with limited research on twin pregnancies. OBJECTIVE This study aimed to investigate the association between IPI and adverse perinatal outcomes in twin pregnancies. STUDY DESIGN This population-based, retrospective cohort study analyzed data from the National Center for Health Statistics in the United States between 2016 and 2020. We included multiparous women aged 18 to 45 years with live-born twins without congenital anomalies, born between 26 and 42 weeks of gestation. Poisson regression models, adjusted for potential confounders, were used to evaluate the associations between IPI and adverse outcomes, including preterm birth (PTB) <36 weeks, small for gestational age (SGA), neonatal intensive care unit (NICU) admission, neonatal composite morbidity, and infant death. Missing data on covariates were managed using multiple imputations. Dose-response analyses were performed using the restricted cubic splines (RCS) approach. Subgroup analyses were stratified by maternal age, parity, and combination of neonatal sex. Sensitivity analyses were conducted using complete data and excluding pregnancies with intervening events during the IPI. RESULTS A total of 143,014 twin pregnancies were included in the analysis. Compared to the referent group (IPI of 18-23 months), an IPI of less than 6 months was associated with an increased risk of PTB<36 weeks (RR, 1.21; 95% confidence interval [95% CI]: 1.17-1.25), SGA (RR, 1.11; 95% CI: 1.03-1.18), neonatal composite morbidity (RR, 1.19; 95% CI: 1.12-1.27), NICU admission (RR, 1.18; 95% CI: 1.14-1.22), and infant death (RR, 1.29; 95% CI: 1.05-1.60). An IPI of 5 years or more was associated with an increased risk of PTB<36 weeks (RR, 1.18; 95% CI: 1.15-1.21), SGA (RR, 1.24; 95% CI: 1.18-1.30), neonatal composite morbidity (RR, 1.10; 95% CI: 1.05-1.15), and NICU admission (RR, 1.14; 95% CI: 1.11-1.17). The dose-response analyses showed that these outcomes had U-shaped or J-shaped associations with IPI. The associations between IPI and the outcomes slightly differed by advanced maternal age, parity, and combination of neonatal sex. The sensitivity analyses yielded similar results to the main findings. CONCLUSION Extreme IPI, less than 6 months or more than 5 years, was associated with adverse outcomes in twin pregnancies. IPI could be used as a predictor for risk stratification in high-risk twin pregnancies.
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Affiliation(s)
- Shaoxin Ye
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Xuqiong Huang
- Medical Administration Division, People's Hospital of Huadu District, Guangzhou, Guangdong, China (Huang)
| | - Dazhi Fan
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Gengdong Chen
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Pengsheng Li
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Jiaming Rao
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Zixing Zhou
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Xiaoling Guo
- Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Zhengping Liu
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin)
| | - Dongxin Lin
- Foshan Institute of Fetal Medicine, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Liu, Lin); Department of Obstetrics, Maternal & Child Health Hospital of Foshan, Foshan, Guangdong, China (Ye, Fan, Chen, Li, Rao, Zhou, Guo, Liu, Lin).
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Nutaitis AC, Yao M, Hickman LC, Kollikonda S, Propst KA. Obstetric Anal Sphincter Injury: Interpregnancy Interval and Route of Subsequent Delivery. UROGYNECOLOGY (PHILADELPHIA, PA.) 2024:02273501-990000000-00248. [PMID: 38958184 DOI: 10.1097/spv.0000000000001551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
IMPORTANCE Knowledge on the interpregnancy interval (IPI) among women with an obstetric anal sphincter injury (OASI) is both limited and not well understood. OBJECTIVES The objectives of this study were to describe the IPI among women with OASI and to compare women with OASI based on the route of subsequent obstetric delivery and OASI recurrence. STUDY DESIGN This was a retrospective single-cohort study of women who had an OASI between 2013 and 2015 at a tertiary academic medical center. Demographics, obstetric delivery data, postpartum sequelae, and subsequent pregnancy delivery data from 2013 to 2021 were collected. The IPI was defined as the time from date of first vaginal delivery to date of conception of the subsequent pregnancy. Women without a subsequent pregnancy were censored at the date of last contact. The IPI was evaluated using a survival analysis (Kaplan-Meier estimator). RESULTS A total of 287 women experienced an OASI, and subsequent pregnancy occurred for 178 (62.0%) women. The median IPI was 26.4 months (95% confidence interval: 23.7-29.9) for women with a prior OASI. Of the 97 women who did not have a subsequent pregnancy documented during the study, the median follow-up was 64.0 months (interquartile range: 5.7-80.0). Subsequent delivery route data were available for 171 women; of those, 127 (74.3%) experienced a subsequent vaginal delivery and 44 (25.7%) experienced a cesarean delivery. Of the 127 women who experienced a subsequent vaginal delivery, 3 (2.4%) experienced a recurrent OASI. CONCLUSION The IPI among women with OASI is similar to the IPI for all women in Ohio and in the United States.
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Affiliation(s)
- Alexandra C Nutaitis
- From the Department of Obstetrics and Gynecology, Cleveland Clinic Akron General, Akron, OH
| | - Meng Yao
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH
| | - Lisa C Hickman
- Female Pelvic Medicine & Reconstructive Surgery, Department of Obstetrics and Gynecology, Ohio State University, Columbus, OH
| | - Swapna Kollikonda
- Obstetrics, Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, OH
| | - Katie A Propst
- Urogynecology & Reconstructive Pelvic Surgery, Department of Obstetrics and Gynecology, University of South Florida, Tampa, FL
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Ni W, Gao X, Su X, Cai J, Zhang S, Zheng L, Liu J, Feng Y, Chen S, Ma J, Cao W, Zeng F. Birth spacing and risk of adverse pregnancy and birth outcomes: A systematic review and dose-response meta-analysis. Acta Obstet Gynecol Scand 2023; 102:1618-1633. [PMID: 37675816 PMCID: PMC10619614 DOI: 10.1111/aogs.14648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/20/2023] [Accepted: 06/30/2023] [Indexed: 09/08/2023]
Abstract
INTRODUCTION The association between extreme birth spacing and adverse outcomes is controversial, and available evidence is fragmented into different classifications of birth spacing. MATERIAL AND METHODS We conducted a systematic review of observational studies to evaluate the association between birth spacing (i.e., interpregnancy interval and interoutcome interval) and adverse outcomes (i.e., pregnancy complications, adverse birth outcomes). Pooled odds ratios (ORs) with 95% confidence intervals (CI) were calculated using a random-effects model, and the dose-response relationships were evaluated using generalized least squares trend estimation. RESULTS A total of 129 studies involving 46 874 843 pregnancies were included. In the general population, compared with an interpregnancy interval of 18-23 months, extreme intervals (<6 months and ≥ 60 months) were associated with an increased risk of adverse outcomes, including preterm birth, small for gestational age, low birthweight, fetal death, birth defects, early neonatal death, and premature rupture of fetal membranes (pooled OR range: 1.08-1.56; p < 0.05). The dose-response analyses further confirmed these J-shaped relationships (pnon-linear < 0.001-0.009). Long interpregnancy interval was only associated with an increased risk of preeclampsia and gestational diabetes (pnon-linear < 0.005 and pnon-linear < 0.001, respectively). Similar associations were observed between interoutcome interval and risk of low birthweight and preterm birth (pnon-linear < 0.001). Moreover, interoutcome interval of ≥60 months was associated with an increased risk of cesarean delivery (pooled OR 1.72, 95% CI 1.04-2.83). For pregnancies following preterm births, an interpregnancy interval of 9 months was not associated with an increased risk of preterm birth, according to dose-response analyses (pnon-linear = 0.008). Based on limited evidence, we did not observe significant associations between interpregnancy interval or interoutcome interval after pregnancy losses and risk of small for gestational age, fetal death, miscarriage, or preeclampsia (pooled OR range: 0.76-1.21; p > 0.05). CONCLUSIONS Extreme birth spacing has extensive adverse effects on maternal and infant health. In the general population, interpregnancy interval of 18-23 months may be associated with potential benefits for both mothers and infants. For women with previous preterm birth, the optimal birth spacing may be 9 months.
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Affiliation(s)
- Wanze Ni
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Xuping Gao
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Xin Su
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Jun Cai
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Shiwen Zhang
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Lu Zheng
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Jiazi Liu
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Yonghui Feng
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Shiyun Chen
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Junrong Ma
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Wenting Cao
- Department of Medical Statistics & Epidemiology, International School of Public Health and One HealthHainan Medical UniversityHaikouHainanChina
| | - Fangfang Zeng
- Department of Public Health and Preventive Medicine, School of MedicineJinan UniversityGuangzhouGuangdongChina
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Eastin EF, Nelson DA, Shaw JG, Shaw KA, Kurina LM. Postpartum long-acting reversible contraceptive use among active-duty, female US Army soldiers. Am J Obstet Gynecol 2023; 229:432.e1-432.e12. [PMID: 37460035 DOI: 10.1016/j.ajog.2023.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/02/2023] [Accepted: 07/13/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Postpartum use of long-acting reversible contraception has been found to be effective at increasing interpregnancy intervals, reducing unintended pregnancies, and optimizing health outcomes for mothers and babies. Among female active-duty military service members, reproductive planning may be particularly important, yet little is known about postpartum long-acting reversible contraceptive use among active-duty soldiers. OBJECTIVE This study aimed to (1) quantify postpartum uptake of long-acting reversible contraception among active-duty female US Army soldiers and (2) identify demographic and military-specific characteristics associated with use. STUDY DESIGN This retrospective cohort study used longitudinal data of all digitally recorded health encounters for active-duty US Army soldiers from 2014 to 2017. The servicewomen included in our analysis were aged 18 to 44 years with at least one delivery and a minimum of 4 months of total observed time postdelivery within the study period. We defined postpartum long-acting reversible contraception use as initiation of use within the delivery month or in the 3 calendar months following delivery and identified likely immediate postpartum initiation via the proxy of placement recorded during the same month as delivery. We then evaluated predictors of postpartum long-acting reversible contraception use with multivariable logistic regression. RESULTS The inclusion criteria were met by 15,843 soldiers. Of those, 3162 (19.96%) initiated the use of long-acting reversible contraception in the month of or within the 3 months following delivery. Fewer than 5% of these women used immediate postpartum long-acting reversible contraception. Among women who initiated postpartum long-acting reversible contraceptive use, 1803 (57.0%) received an intrauterine device, 1328 (42.0%) received an etonogestrel implant, and 31 received both (0.98%). Soldiers of younger age, self-reported White race, and those who were married or previously married were more likely to initiate long-acting reversible contraception in the postpartum period. Race-stratified analyses showed that self-reported White women had the highest use rates overall. When compared with these women, the adjusted odds of postpartum use among self-reported Black and Asian or Pacific Islander women were 18% and 30% lower, respectively (both P<.001). There was also a trend of decreasing postpartum use with increasing age within each race group. Differences observed between age groups and race identities could partially be attributed to differential use of permanent contraception (sterilization), which was found to be significantly more prevalent among both women aged 30 years or older and among women who identified as Black. CONCLUSION Among active-duty US Army servicewomen, 1 in 5 used postpartum long-acting reversible contraception, and fewer than 5% of these women used an immediate postpartum method. Within this population with universal healthcare coverage, we observed relatively low rates of use and significant differences in the uptake of effective postpartum long-acting contraceptive methods across self-reported race categories.
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Affiliation(s)
- Ella F Eastin
- Stanford University School of Medicine, Stanford, CA
| | - D Alan Nelson
- Division of Primary Care and Population Health, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Jonathan G Shaw
- Division of Primary Care and Population Health, Department of Medicine, Stanford University School of Medicine, Stanford, CA; Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA
| | - Kate A Shaw
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA
| | - Lianne M Kurina
- Division of Primary Care and Population Health, Department of Medicine, Stanford University School of Medicine, Stanford, CA.
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Li Y, Gao S, Wang J, An H, Zhang L, Zhang Y, Liu X, Li Z. Effects of Short Interpregnancy Intervals on Adverse Pregnancy Outcomes - Haidian District, Beijing Municipality, China, 2017-2019. China CDC Wkly 2023; 5:767-772. [PMID: 37745266 PMCID: PMC10515645 DOI: 10.46234/ccdcw2023.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/11/2023] [Indexed: 09/26/2023] Open
Abstract
What is already known about this topic? Interpregnancy intervals (IPIs) that are either excessively long or short have been linked with an elevated risk of adverse perinatal outcomes. Presently, no pertinent guidelines have been established in China to provide clear direction with regard to optimal IPI. What is added by this report? A brief interpregnancy interval may elevate the risk of miscarriage, postpartum hemorrhage, and fetal distress among expectant women. What are the implications for public health practice? These results could inform prenatal consultations, guiding pregnant women towards an ideal interpregnancy interval of no less than 24 months.
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Affiliation(s)
- Yuan Li
- Institute of Reproductive and Child Health, Peking University / Key Laboratory of Reproductive Health, National Health Commission of the People’s Republic of China, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Suhong Gao
- Department of Child Health, Beijing Haidian Maternal and Child Health Hospital, Beijing, China
| | - Jiamei Wang
- Department of Gynaecology and Obstetrics, Beijing Haidian Maternal and Child Health Hospital, Beijing, China
| | - Hang An
- Institute of Reproductive and Child Health, Peking University / Key Laboratory of Reproductive Health, National Health Commission of the People’s Republic of China, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Le Zhang
- Institute of Reproductive and Child Health, Peking University / Key Laboratory of Reproductive Health, National Health Commission of the People’s Republic of China, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Yali Zhang
- Institute of Reproductive and Child Health, Peking University / Key Laboratory of Reproductive Health, National Health Commission of the People’s Republic of China, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Xiaohong Liu
- Department of Gynaecology and Obstetrics, Beijing Haidian Maternal and Child Health Hospital, Beijing, China
| | - Zhiwen Li
- Institute of Reproductive and Child Health, Peking University / Key Laboratory of Reproductive Health, National Health Commission of the People’s Republic of China, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
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Roble AK, Osman MO, Ibrahim AM, Wedajo GT, Abdi Usman S. Determinants of short birth interval among ever married reproductive age women living in Jigjiga, Eastern Ethiopia 2020 (unmatched case-control study). SAGE Open Med 2022; 9:20503121211067870. [PMID: 34992784 PMCID: PMC8725026 DOI: 10.1177/20503121211067870] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022] Open
Abstract
Objectives: A short birth interval is a universal public health problem resulting in adverse maternal, neonatal, and child outcomes. Therefore, the aim of this study was to identify determinants of short birth interval among ever married reproductive age mothers who live in Jigjiga city administration, Eastern Ethiopia, 2020. Methods: A community-based unmatched case–control study was used among 194 cases and 194 controls in Jigjiga city administration from September to December 2020. Cases were women with short birth interval (less than 3 years) and controls were women with optimum birth interval (3–5 years). Simple random sampling technique was employed to select cases and controls. Data were entered into Epi data version 4.2 and analysis with SPSS version 22. Binary logistic regression with 95% confidence interval at p < 0.05 is used to declare significantly associated predictors of short birth interval. Result: This study reported that women who have not attended formal education (adjusted odds ratio = 5.28, 95% confidence interval: (2.25–12.36)), attended primary education (adjusted odds ratio = 2.79, 95% confidence interval: (1.46–5.34)), women who married to a polygamous husband (adjusted odds ratio = 3.69, 95% confidence interval: (1.80–7.58)), having a history of neonatal death (adjusted odds ratio = 2.15, 95% confidence interval: (1.07–4.32)), preceding child being female (adjusted odds ratio = 3.69, 95% confidence interval: (2.02–6.72)), and never used contraceptive methods (adjusted odds ratio = 3.69, 95% confidence interval: (2.02–6.72)) were identified as determinants of the short birth interval. Conclusion: Short birth intervals were associated with educational level of the women, sex of the baby, husband marriage types, history of neonatal death, and contraceptive utilization. Strategy should be engaged to enhance women education, contraceptive uses, and to decrease neonatal death.
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Affiliation(s)
- Abdurahman Kedir Roble
- Department of Midwifery, College of Medicine and Health Science, Jigjiga University, Jigjiga, Ethiopia
| | - Mohamed Omar Osman
- Department of Public Health, College of Medicine and Health Science, Jigjiga University, Jigjiga, Ethiopia
| | - Ahmed Mohamed Ibrahim
- Department of Public Health, College of Medicine and Health Science, Jigjiga University, Jigjiga, Ethiopia
| | - Girma Tadesse Wedajo
- Department of Public Health, College of Medicine and Health Science, Jigjiga University, Jigjiga, Ethiopia
| | - Seid Abdi Usman
- Department of Nursing, College of Medicine and Health Science, Jigjiga University, Jigjiga, Ethiopia
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9
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Li W, Zuo L, Ni Y, Xiao D, Mo W, Wen Z, Zhao J, Zhang J, Yang L. Interpregnancy interval and subsequent perinatal risk of congenital heart disease in Guangzhou, Southern China: a retrospective cohort study, 2014-2019. J Matern Fetal Neonatal Med 2021; 35:8989-8997. [PMID: 34847800 DOI: 10.1080/14767058.2021.2008898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND The association between maternal interpregnancy interval (IPI) and congenital heart disease (CHD) in neonates remains inconclusive. This study aimed to examine the effect of maternal IPI on birth risk of CHD. METHODS Chinese women with two consecutive singleton deliveries in Guangzhou between January 2014 and December 2019 were selected as participants. Information on IPI and CHD was extracted from the Guangzhou Perinatal Health Care and Delivery Registry and the Guangzhou Birth Defects Surveillance Program. We stratified IPI into four categories: <24 months, 24-35 months, 36-59 months, and ≥60 months. A multivariate logistic regression model was used to examine the association between IPI and CHD. Subgroup analysis was also performed to assess whether the associations differed across top three CHD subtypes. RESULTS For 119,510 women enrolled in this study, the mean ages at two consecutive deliveries were 26.2 ± 3.8 and 28.8 ± 4.0 years, which yielded a median IPI of 51.2 (interquartile range, 32.1-77.2) months. Among them, 828 delivered infants with CHD during their second pregnancy. There was a J-shaped curve relationship between IPI and CHD with the lowest birth prevalence (5.33‰) at 24-35-month interval. Compared to women with an IPI of 24-35 months, those with an IPI ≥60 had an increased risk of delivering infants with CHD (adjusted odds ratio (OR), 1.41; 95% confidence interval (CI), 1.19-1.64). However, for those with an IPI <24 months (adjusted OR, 1.24; 95% CI, 0.97-1.51), IPI was statistically insignificant associated with the risk of delivering infants with CHD (p = .12). There were different patterns of associations for different CHD subtypes. CONCLUSIONS Longer maternal IPI (≥60 months) was associated with an increased risk of delivering infants with CHD in the Chinese population.
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Affiliation(s)
- Weidong Li
- Department of Woman and Child Health Care Information, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Liandong Zuo
- Department of Science Research and Education Management, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yanyan Ni
- Institute for Women's Health, University College London, London, UK
| | - Di Xiao
- Department of Woman and Child Health Care Information, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Weijian Mo
- Department of Woman and Child Health Care Information, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zihao Wen
- Department of Woman and Child Health Care Information, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jing Zhao
- Department of Woman and Child Health Care Information, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jinxin Zhang
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li Yang
- Department of Woman and Child Health Care Information, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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10
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Garg B, Darney B, Pilliod RA, Caughey AB. Long and short interpregnancy intervals increase severe maternal morbidity. Am J Obstet Gynecol 2021; 225:331.e1-331.e8. [PMID: 34023313 DOI: 10.1016/j.ajog.2021.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Severe maternal morbidity is a composite variable that includes adverse maternal outcomes during pregnancy that are associated with maternal mortality. Previous literature has shown that interpregnancy interval is associated with preterm birth, fetal growth restriction, and low birthweight, but the association of interpregnancy interval and composite severe maternal morbidity is not well studied. OBJECTIVE We sought to determine the relationship between interpregnancy interval (stratified as <6, 6-11, 12-17, 18-23, 24-59, and ≥60 months) and severe maternal morbidity, which we considered both with and without blood transfusion. STUDY DESIGN This was a retrospective cohort study of multiparous women 15 to 54 years old with singleton, nonanomalous births between 23 and 42 weeks gestation in California (2007-2012). We defined severe maternal morbidity as the composite score of a published list of the International Classification of Diseases, ninth Revision, diagnoses and procedure codes, provided by the Centers for Disease Control and Prevention. We used chi-square tests for categorical variables, and multivariable logistic regression models were used to determine the association of interpregnancy interval (independent variable) with severe maternal morbidity (dependent variable), adjusted for maternal race and ethnicity, age, education, body mass index, insurance, prenatal care, smoking status, and maternal comorbidity index score. RESULTS Here, 1,669,912 women met the inclusion criteria, and of these women, 14,529 (0.87%) had severe maternal morbidity and 4712 (0.28%) had nontransfusion severe maternal morbidity. Multivariable logistic regression models showed that compared with women with 18 to 23 months interpregnancy interval, women with an interpregnancy interval of <6 months (adjusted odds ratio, 1.23; 95% confidence interval, 1.14-1.34) and ≥60 months (adjusted odds ratio, 1.11; 95% confidence interval, 1.04-1.19) had significantly higher adjusted odds of severe maternal morbidity. The odds of nontransfusion severe maternal morbidity is higher in women with long interpregnancy intervals (≥60 months) after controlling for the same potential confounders (adjusted odds ratio, 1.17, 95% confidence interval, 1.04-1.31). In addition, we found significantly higher odds of requiring ventilation (adjusted odds ratio, 1.34; 95% confidence interval, 1.03-1.75) and maternal sepsis (adjusted odds ratio, 2.08; 95% confidence interval, 1.31-3.31) in women with long interpregnancy interval. CONCLUSION The risk of severe maternal morbidity was higher in women with short interpregnancy interval (<6 months) and long interpregnancy interval (≥60 months) compared with women with normal interpregnancy interval (18-23 months). The risk of nontransfusion severe maternal morbidity was significantly higher in women with long interpregnancy interval (≥60 months). Interpregnancy interval is a modifiable risk factor, and counseling women to have an adequate gap between pregnancies may be an important strategy to decrease the risk of severe maternal morbidity.
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11
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Perceived norms, personal agency, and postpartum family planning intentions among first-time mothers age 15-24 years in Kinshasa: A cross-sectional analysis. PLoS One 2021; 16:e0254085. [PMID: 34242267 PMCID: PMC8270160 DOI: 10.1371/journal.pone.0254085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 06/18/2021] [Indexed: 11/19/2022] Open
Abstract
Unintended pregnancy is an important global health problem and frequently occurs during the immediate postpartum period. However, few studies have examined postpartum family planning (PPFP) intentions among adolescent girls and young women. This study assessed whether perceived norms and personal agency predicted PPFP intentions among first-time mothers age 15–24 in Kinshasa, the Democratic Republic of Congo. Data were derived from the 2018 Momentum Project baseline survey. Analysis was based on 2,418 nulliparous pregnant women age 15–24 who were approximately six months pregnant with their first child in six health zones of Kinshasa. Overall PPFP intentions were low and ten to thirteen percent of women stated they were very likely to discuss PPFP next month with (a) their husband/male partner and (b) a health worker, and to (c) obtain and (d) use a contraceptive method during the first six weeks following childbirth. The results of multivariable linear regression models indicated that the PPFP intention index was predicted by description norms, perceptions of the larger community’s approval of PPFP, normative expectations, perceived behavioral control, self-efficacy, and autonomy. Rejection of family planning myths and misconceptions was also a significant predictor. Interaction terms suggested that the association of normative expectations with PPFP intentions varied across ethnic groups and that the positive association of injunctive norms with PPFP intentions was significantly increased when the larger community was perceived to disapprove of PPFP use. Normative expectations and PPFP-related self-efficacy accounted for two-thirds of the variance in PPFP intentions. The results suggested that understanding different normative influences may be important to motivate women to use contraception in the immediate postpartum period. In addition to addressing institutional, individual, and social determinants of PPFP, programs should consider integrating norm-based and empowerment strategies.
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12
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Gebremedhin AT, Tessema GA, Regan AK, Pereira G. Association between interpregnancy interval and hypertensive disorders of pregnancy: Effect modification by maternal age. Paediatr Perinat Epidemiol 2021; 35:415-424. [PMID: 34131934 DOI: 10.1111/ppe.12774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 04/13/2021] [Accepted: 04/18/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Short and long interpregnancy intervals (IPI) are associated with increased risk of hypertensive disorders of pregnancy, yet whether this association is modified by maternal age remains unclear. OBJECTIVES To examine if the association between IPI and hypertensive disorders of pregnancy varies by maternal age at birth prior to IPI. METHODS We conducted a population-based cohort study of all mothers who had their first two (n = 169 896) consecutive births in Western Australia (WA) between 1980 and 2015. We estimated the risk of preeclampsia and gestational hypertension for 6 to 60 months of IPI according to maternal age at birth prior to IPI (<20 years, 20-24, 25-29, 30-34 and ≥35 years). We modelled IPI using restricted cubic splines and reported adjusted relative risk (RRs) with 95% CI at 6, 12, 24, 36, 48 and 60 months, with 18 months as reference. RESULTS The risk of preeclampsia was increased at longer IPIs (60 months) compared to 18 months for mothers 35 years or older (RR 2.19, 95% confidence interval (CI) 1.14, 4.18) and to a lesser extent for mothers 30- to 34 years old (RR 1.43, 95% CI 1.10, 1.84). Compared to 18 months, the risk of preeclampsia was lower at 12 months of IPI for mothers younger than 20 years (RR 0.74, 95% CI 0.57, 0.96), but not for mothers 35 years or older (RR 0.62, 95% CI 0.36, 1.07). There was insufficient evidence for increased risk of hypertensive disorders of pregnancy at shorter IPIs of <18 months for mothers of all ages. CONCLUSIONS Our findings challenge the "one size fits all" recommendation for an optimal IPI, and a more tailored approach to family planning counselling may be required to improve health.
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Affiliation(s)
| | | | - Annette K Regan
- Curtin School of Population Health, Curtin University, WA, Australia.,School of Public Health, Texas A&M University, College Station, TX, USA
| | - Gavin Pereira
- Curtin School of Population Health, Curtin University, WA, Australia.,Telethon Kids Institute, Nedlands, WA, Australia.,Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway
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13
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Bi S, Zhang L, Chen J, Huang M, Huang L, Zeng S, Li Y, Liang Y, Jia J, Wen S, Cao Y, Wang S, Xu X, Feng L, Zhao X, Zhao Y, Zhu Q, Qi H, Zhang L, Li H, Wang Z, Du L, Chen D. Maternal age at first cesarean delivery related to adverse pregnancy outcomes in a second cesarean delivery: a multicenter, historical, cross-sectional cohort study. BMC Pregnancy Childbirth 2021; 21:126. [PMID: 33579220 PMCID: PMC7881558 DOI: 10.1186/s12884-021-03608-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 01/31/2021] [Indexed: 12/18/2022] Open
Abstract
Background To determine the effects of maternal age at first cesarean on maternal complications and adverse outcomes of pregnancy with the second cesarean. Methods This was a multicenter, historical, cross-sectional cohort study involving singleton pregnancies ≥28 gestational weeks, with a history of 1 cesarean delivery, and who underwent a second cesarean between January and December 2017 at 11 public tertiary hospitals in 7 provinces of China. We analyzed the effects of maternal age at first cesarean on adverse outcomes of pregnancy in the second cesarean using multivariate logistic regression analysis. Results The study consisted of 10,206 singleton pregnancies. Women were at first cesarean between 18 and 24, 25–29, 30–34, and ≥ 35 years of age; and numbered 2711, 5524, 1751, and 220 cases, respectively. Maternal age between 18 and 24 years at first cesarean increased the risk of placenta accreta spectrum (aOR, 1.499; 95% CI, 1.12–2.01), placenta previa (aOR, 1.349; 95% CI, 1.07–1.70), intrahepatic cholestasis of pregnancy (aOR, 1.947; 95% CI, 1.24–3.07), postpartum hemorrhage (aOR, 1.505; 95% CI, 1.05–2.16), and blood transfusion (aOR, 1.517; 95% CI, 1.21–1.91) in the second cesarean compared with the reference group (aged 25–29 years). In addition, maternal age ≥ 35 years at first cesarean was a risk factor for premature rupture of membranes (aOR, 1.556; 95% CI, 1.08–2.24), placental abruption (aOR, 6.464, 95% CI, 1.33–31.51), uterine rupture (aOR, 7.952; 95% CI, 1.43–44.10), puerperal infection (aOR, 6.864; 95% CI, 1.95–24.22), neonatal mild asphyxia (aOR, 4.339; 95% CI, 1.53–12.32), severe asphyxia (aOR, 18.439; 95% CI, 1.54–220.95), and admission to a neonatal intensive care unit (aOR, 2.825; 95% CI, 1.54–5.17) compared with the reference group (aged 25–29 years). Conclusions Maternal age between 18 and 24 years or advanced maternal age at first cesarean was an independent risk factor for adverse maternal outcomes with the second cesarean. Advanced maternal age at the first cesarean specifically increased adverse neonatal outcomes with the second. Therefore, decisions as to whether to perform a first cesarean at a young or advanced maternal age must be critically evaluated. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-021-03608-9.
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Affiliation(s)
- Shilei Bi
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Lizi Zhang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Ave North, Guangzhou, 510515, Guangdong, China
| | - Jingsi Chen
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, People's Republic of China.,Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, People's Republic of China
| | - Minshan Huang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Lijun Huang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Shanshan Zeng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Yulian Li
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Yingyu Liang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China
| | - Jinping Jia
- Department of Obstetrics and Gynecology, Guangzhou Huadu District Maternal and Child Health Hospital, Guangzhou, China
| | - Suiwen Wen
- Department of Obstetrics and Gynecology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou, China
| | - Yinli Cao
- Department of Obstetrics and Gynecology, Northwest Women's and Children's Hospital, Xian, China
| | - Shaoshuai Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyan Xu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Feng
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xianlan Zhao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yangyu Zhao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Qiying Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Hongbo Qi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lanzhen Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hongtian Li
- Institute of Reproductive and Child Health, National Health Commission Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Zhijian Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Ave North, Guangzhou, 510515, Guangdong, China.
| | - Lili Du
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China. .,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, People's Republic of China. .,Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, People's Republic of China.
| | - Dunjin Chen
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150, Guangdong, China. .,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, People's Republic of China. .,Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, People's Republic of China.
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14
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Vladutiu CJ, Kandasamy V, Ahrens KA. Folate Levels by Time Since Last Live Birth Among U.S. Women, 2007-2016. J Womens Health (Larchmt) 2020; 30:1204-1212. [PMID: 33236942 DOI: 10.1089/jwh.2020.8428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background: Folate depletion in the postpartum period may increase the risk of adverse pregnancy outcomes for women with a short interpregnancy interval following a live birth. We sought to examine folate levels by time since last live birth among U.S. women. Materials and Methods: Data were from 4,809 U.S. women, 20-44 years of age, participating in the National Health and Nutrition Examination Survey, 2007-2016. Red blood cell (RBC) folate was measured using microbiological assay on whole blood samples. Dietary folate intake and folic acid supplementation were measured during a 24-hour dietary recall. Prevalence of supplementation by time since last live birth was estimated from logistic regression models; mean levels of RBC folate and mean intake of dietary folate equivalent were estimated from linear regression models. Models were adjusted for maternal sociodemographic characteristics. Results: In adjusted models, supplementation (±standard error) was highest among women in the first year postpartum (31.7% ± 3.2) compared with nulliparous women (23.7% ± 1.9) and those 2-3 years (15.6% ± 1.9) and ≥3 years (18.4% ± 1.6) after last live birth. Mean RBC folate was highest among women in the first year postpartum, regardless of supplementation, with overall mean levels of 606 ± 15 ng/mL, compared with 484 ± 9, 477 ± 11, and 474 ± 7 among women in the aforementioned groups, respectively. Mean dietary folate intake was also highest among postpartum women: 542 ± 23 mcg/day, compared with 474 ± 12, 486 ± 21, and 467 ± 12. Conclusions: Folate levels are highest in the first year postpartum compared with other time periods within a woman's reproductive lifespan. These findings do not support the idea that postpartum U.S. women are depleted in folate, on average.
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Affiliation(s)
- Catherine J Vladutiu
- Office of Epidemiology and Research, Maternal and Child Health Bureau, Health Resources and Services Administration, Rockville, Maryland, USA
| | - Veni Kandasamy
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Katherine A Ahrens
- Muskie School of Public Service, University of Southern Maine, Portland, Maine, USA
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