Kristen Lee

Nov 13, 2023 | jamanetwork.com | Xiaoning Huang |Kristen Lee |Michael Wang |Nilay S. Shah

Maternal Nativity and Preterm Birth Key PointsQuestion  What is the association between maternal birthplace and preterm birth rates, and are there differences by self-reported race and ethnicity of pregnant individuals? Findings  In this cross-sectional study of 8 590 988 nulliparous individuals with a live birth in the US between 2014 and 2019, preterm birth rates were significantly lower among non–US-born individuals compared with US-born individuals.