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[Relationship between pre-pregnancy body mass index and preterm birth]
1Department of Child, Adolescent and Women's Health, Peking University School of Public Health, Beijing 100191, China.
Summary
Pre-pregnancy obesity significantly increases the risk of preterm birth. Maintaining a healthy body mass index (BMI) before conception is crucial for reducing preterm birth rates.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Health
- Maternal-Fetal Medicine
Background:
- Preterm birth remains a leading cause of neonatal morbidity and mortality worldwide.
- Understanding modifiable risk factors, such as pre-pregnancy body mass index (BMI), is essential for effective prevention strategies.
Purpose of the Study:
- To investigate the association between pre-pregnancy body mass index (BMI) and the risk of preterm birth.
- To identify key maternal factors contributing to preterm delivery.
Main Methods:
- A case-control study involving 174 preterm births and 382 term deliveries was conducted.
- Multivariate logistic regression analysis was employed to assess risk factors, adjusting for covariates like maternal age and socioeconomic status.
Main Results:
- Pre-pregnancy obesity was identified as a significant risk factor for preterm birth (adjusted odds ratio: 2.461).
- Gestational diabetes mellitus, pregnancy-induced hypertension, and a family history of preterm birth were also associated with increased risk.
Conclusions:
- Pre-pregnancy obesity is a critical risk factor necessitating targeted preconception care.
- Promoting a normal BMI range before pregnancy is a vital strategy to reduce the incidence of preterm birth.
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