ArticleObesity facts2020
Prepregnancy Overweight and Obesity Are Associated with an Increased Risk of Preterm Birth in Chinese Women.
Article in Obesity facts, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.
- Impact of Body Mass Index on Outcomes of Cervical Cerclage: A Systematic Review and Meta-Analysis.Obesity facts · 2025Pooled it
- Association between pre-pregnancy BMI and preterm birth in Chinese women: a retrospective study.Annals of medicine · 2026Article
- The Effects of Maternal Prepregnancy Obesity and Excessive Gestational Weight Gain on Fetal Growth: A Longitudinal Fetal Growth Study on a Chinese Cohort.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2026Article
- Association of pre-pregnancy body-mass-index and gestational weight gain with preterm singleton birth in women with cervical cerclage: a retrospective cohort study.BMC public health · 2025Article
- Article
- Establishment of a predictive model for spontaneous preterm birth in primiparas with grade A1 gestational diabetes mellitus.Frontiers in global women's health · 2025Article
- Maternal obesity phenotype, metabolic dysfunction, and preterm birth: a prospective birth cohort study.Frontiers in nutrition · 2025Article
- Reducing the Rate of Premature Births through Early Diagnosis and Pregnancy-Adapted Treatment of Hypothyroidism.Geburtshilfe und Frauenheilkunde · 2023Article
- Preterm Births and Associated Factors among Women who Delivered in a District Hospital in Eastern Province, Rwanda: A retrospective study.Rwanda journal of medicine and health sciences · 2023Article
- Impact of pre-pregnancy weight on the risk of premature rupture of membranes in Chinese women.Heliyon · 2023Article
- Spontaneous Preterm Birth: a Fetal-Maternal Metabolic Imbalance.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2023Article
- The Intersection of Maternal Metabolic Syndrome, Adverse Pregnancy Outcomes, and Future Metabolic Health for the Mother and Offspring.Metabolic syndrome and related disorders · 2022Article
- Prevalence and Risk Factors of Preterm Birth Among Pregnant Women Admitted at the Labor Ward of the Komfo Anokye Teaching Hospital, Ghana.Frontiers in global women's health · 2022Article
- Exploring modifiable risk-factors for premature birth in the context of COVID-19 mitigation measures: A discussion paper.Journal of neonatal nursing : JNN · 2021Review
- Association Between Pre-Pregnancy Body Mass Index and Maternal and Neonatal Outcomes of Singleton Pregnancies After Assisted Reproductive Technology.Frontiers in endocrinology · 2021Article
- Association of pre-pregnancy body mass index with adverse pregnancy outcome among first-time mothers.PeerJ · 2020Article
- [Factors influencing very preterm birth at less than 32 weeks of gestation: a multicenter retrospective study].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatricsArticle
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe association between obesity before pregnancy and preterm birth varies with age and ethnicity.
objectiveTo study the association between early body mass index (BMI) and risk of preterm birth in Chinese women.
methodsThis was a hospital-based retrospective cohort study including 36,596 Chinese women who gave birth to a live singleton infant from 2015 to 2018. Women were classified as underweight (BMI <18.5), normal weight (BMI 18.5 to <23), overweight (BMI 23 to <27.5), or obese (BMI ≥27.5) according to the most recent criteria for Asian women. Multivariate log-binomial regression models were used to estimate the relative risks (RRs) and 95% confidence intervals (95% CIs) for preterm birth among different groups.
resultsCompared to women with normal weight, women with overweight or obesity before pregnancy had an increased risk of preterm birth; the RRs and 95% CIs were 1.22 (95% CI: 1.08-1.37) and 1.30 (95% CI: 1.01-1.69), respectively. The greatest risk of extremely preterm birth was observed in obese women. The estimators were robust when considering the maternal age and rate of gestational weight gain (GWG) during pregnancy.
conclusionsWomen with overweight and obesity had an increased risk of preterm birth regardless of GWG in early pregnancy. Our study suggests that it is beneficial to lose weight before conception for both overweight and obese women who plan to become pregnant.
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