Gestational diabetes & diabetes in pregnancy

Physical Activity During Pregnancy and Preterm Birth Among Women With Gestational Diabetes

JAMA Netw OpenPublished Prospective cohort study

Authors' conclusion

In this prospective cohort study, MVPA during pregnancy exhibited an inverse association with preterm birth among women with GD. Concentrated physical activity was associated with similar benefits in reducing preterm birth risk as regular physical activity.

Study context

Population
Pregnant women with gestational diabetes (GD) in Hangzhou, China, Westlake Precision Birth Cohort, August 2019 to August 2023; mean (SD) age 31.3 (3.8) years
Participants
1,427 women80 preterm births
Exposure
Accelerometer-derived physical activity metrics and patterns
Outcome
Preterm birth (delivery before completing 37 weeks of gestation)

Main finding

As reported in the abstract

Preterm birth

OR per 30 minutes of MVPA

0.64

95% CI 0.42–0.98

OR per SD of fraction of physical activity energy expenditure from MVPA

0.69

95% CI 0.55–0.88

Observational data: associations, not effects.

Further findings

Dose-response: MVPA duration per day and preterm birth

Progressive decrease in odds of preterm birth with increasing MVPA per day, plateau at ≈74 minutes per day

Pattern of active MVPA (≥30 minutes per day): concentrated vs regular

Concentrated and regular active MVPA had similar beneficial association with preterm birth

Original publication

Physical Activity During Pregnancy and Preterm Birth Among Women With Gestational Diabetes. JAMA Netw Open. Published 2 December 2024. doi:10.1001/jamanetworkopen.2024.51799

Composed by AI from the published abstract and checked against it. How Briefs are made →

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