Recurrence of Preterm Birth and Early Term Birth.

ABSTRACT:

Objective

To examine recurrent preterm birth and early term birth in women's initial and immediately subsequent pregnancies.

Methods

This retrospective cohort study included 163,889 women who delivered their first and second liveborn singleton neonates between 20 and 44 weeks of gestation in California from 2005 through 2011. Data from hospital discharge records and birth certificates were used for analyses. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using logistic regression models adjusted for risk factors.

Results

Shorter gestational duration in the first pregnancy increased the risk of subsequent preterm birth (both early, before 32 weeks of gestation, and later, from 32 to 36 weeks of gestation) as well as early term birth (37-38 weeks o

SUBMITTER: Yang J 

PROVIDER: S-EPMC5055875 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature