Prevalence of preterm, low birthweight, and small for gestational age delivery after breast cancer diagnosis: a population-based study.

Background: Black-white disparities in breast cancer incidence rates and birth outcomes raise concerns about potential disparities in the reproductive health of premenopausal breast cancer survivors. We examined the prevalence of preterm birth (PTB), low birthweight (LBW), and small for gestational age (SGA) by breast cancer history and effect modification by race.

Methods: We analyzed linked North Carolina birth records and Central Cancer Registry files from 1990 to 2009 (n = 2,325,229).