Racial disparity in previable birth

A population-based retrospective cohort study of over a million live births in Ohio from 2006 to 2012 found that 0.25% of births occurred between 16 – 22 weeks (previable births). Compared to white mothers, black mothers had a three to sixfold higher rate of previable birth (7 vs 2 per 1000 live births – rounded up). Of the total infant mortality, previable births comprised 28% in white newborns, and 45% in black infants. Since all live-born previable births result in death, this could explain the racial disparity in infant mortality. Other factors associated with previable birth on logistic regression included age greater than 34 years, unmarried status, fetal congenital anomaly, prior preterm birth and multiple gestation.

Racial disparity in preterm birth. Defranco et al, 2015.