The association between maternal and paternal race and preterm birth

Non-Hispanic black maternal race is a known risk factor for preterm birth. However, the contribution of paternal race is not as well established.We sought to evaluate the risk of preterm birth among non-Hispanic black, non-Hispanic white, and mixed non-Hispanic black and non-Hispanic white dyads.This was a population-based cohort study of all live births in the United States from 2015 to 2017, using live birth records from the National Vital...