Association between maternal outdoor physical exercise and the risk of preterm birth: a case-control study in Wuhan, China.

ABSTRACT:

Background

China had the second largest proportion of preterm birth (PTB) internationally. However, only 11% of pregnant women in China meet international guidelines for maternal physical activity, a significantly lower proportion than that in Western countries. This study aims to examine the association between outdoor physical exercise during pregnancy and PTB among Chinese women in Wuhan, China.

Methods

A case-control study was conducted among 6656 pregnant women (2393 cases and 4263 controls) in Wuhan, China from June 2011 to June 2013. Self-reported measures of maternal physical exercise (frequency per week and per day in minutes) were collected. Adjusted odds ratios were estimated using Bayesian hierarchical logistic regression and a generalized additive mixed model (G

SUBMITTER: Cai M 

PROVIDER: S-EPMC7955628 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature