Maternal body mass index and post-term birth: a systematic review and meta-analysis.

ABSTRACT: Post-term birth is a preventable cause of perinatal mortality and severe morbidity. This review examined the association between maternal body mass index (BMI) and post-term birth at ≥42 and ≥41 weeks' gestation. Five databases, reference lists and citations were searched from May to November 2015. Observational studies published in English since 1990 were included. Linear and nonlinear dose-response meta-analyses were conducted by using random effects models. Sensitivity analyses assessed robustness of the results. Meta-regression and sub-group meta-analyses explored heterogeneity. Obesity classes were defined as I (30.0-34.9 kg m^-2 ), II (35.0-39.9 kg m^-2 ) and III (≥40 kg m^-2 ; IIIa 40.0-44.9 kg m^-2 , IIIb ≥ 45.0 kg m^-2 ). Searches

SUBMITTER: Heslehurst N 

PROVIDER: S-EPMC5324665 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature