Ontology highlight
ABSTRACT: Objective
The objectives of this study were as follows: (i) to estimate the proportion of preterm deliveries at a tertiary perinatal center that were provider-initiated versus spontaneous before and after a 2009 policy to reduce elective early-term deliveries, and (ii)to evaluate whether shifts in type of preterm delivery varied by race/ethnicity.Method
We performed a retrospective cohort study of preterm deliveries over a 10-year period, 2004 to 2013, including detailed review of 929 of 5566 preterm deliveries, to designate each delivery as provider-initiated or spontaneous. We dichotomized the time period into early (2004 to 2009) and late (2010 to 2013). We used log-binomial regression to calculate adjusted risk ratios.Result
Of the 46 981 deliveries, 5566 (11.8%
SUBMITTER: Ada ML
PROVIDER: S-EPMC5687992 | biostudies-literature | 2017 Nov
REPOSITORIES: biostudies-literature