Durations of second stage of labor and pushing, and adverse neonatal outcomes: a population-based cohort study.

ABSTRACT:

Objective

The associations between duration of second stage of labor, pushing time and risk of adverse neonatal outcomes are not fully established. Therefore, we aimed to examine such relationships.

Study design

A population-based cohort study including 42 539 nulliparous women with singleton infants born in cephalic presentation at ⩾37 gestational weeks, using the Stockholm-Gotland Obstetric Cohort, Sweden, and the Swedish Neonatal Quality Register, 2008 to 2013. Poisson regression was used to analyze estimated adjusted relative risks (RRs), with 95% confidence intervals (CIs). Outcome measures were umbilical artery acidosis (pH <7.05 and base excess <-12), birth asphyxia-related complications (including any of the following conditions: hypoxic ischemic encephalopathy, hypo

SUBMITTER: Sandstrom A 

PROVIDER: S-EPMC5339416 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature