Overweight and obesity in mothers and risk of preterm birth and low birth weight infants: systematic review and meta-analyses.

ABSTRACT:

Objective

To determine the relation between overweight and obesity in mothers and preterm birth and low birth weight in singleton pregnancies in developed and developing countries.

Design

Systematic review and meta-analyses.

Data sources

Medline and Embase from their inceptions, and reference lists of identified articles.

Study selection

Studies including a reference group of women with normal body mass index that assessed the effect of overweight and obesity on two primary outcomes: preterm birth (before 37 weeks) and low birth weight (<2500 g).

Data extraction

Two assessors independently reviewed titles, abstracts, and full articles, extracted data using a piloted data collection form, and assessed quality.

Data synthesis

84 studies (64 cohort a

SUBMITTER: McDonald SD 

PROVIDER: S-EPMC2907482 | biostudies-literature | 2010 Jul

REPOSITORIES: biostudies-literature