Key clinical point: Women with obesity have different risks of premature birth depending on their age and race/ethnic background.
Major finding: White and Hispanic women saw higher risk of premature birth associated with obesity starting from age 20, and black women at age 30.
Study details: A retrospective cohort study looking at birth records for 7.14 million mother-child pairs in a U.S. national database.
Disclosures: The National Institutes of Health funded the study. The authors declared no conflicts of interest.
Bao et al. Lancet Diabetes Endocrinol. 2019;7:707-14.