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Obesity and recurrent miscarriage: A systematic review and meta‐analysis
Author(s) -
Cavalcante Marcelo B.,
Sarno Manoel,
Peixoto Alberto B.,
Araujo Júnior Edward,
Barini Ricardo
Publication year - 2019
Publication title -
journal of obstetrics and gynaecology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 50
eISSN - 1447-0756
pISSN - 1341-8076
DOI - 10.1111/jog.13799
Subject(s) - medicine , overweight , meta analysis , odds ratio , miscarriage , obesity , confidence interval , body mass index , pregnancy , medline , cochrane library , systematic review , obstetrics , political science , law , genetics , biology
The aim of this study is to perform a systematic review and meta‐analysis on the relationship between excess weight and risk of recurrent pregnancy loss (RPL) and to highlight the common immunological mechanisms of these two conditions. The PubMed and MEDLINE databases were searched for publications in English available as of November 2017. The search terms used were ‘recurrent pregnancy loss’, ‘body mass index’ (BMI), ‘overweight’ and ‘obesity’. For calculation of the odds ratio (OR) and 95% confidence intervals (CI) for miscarriage in different BMI groups, RevMan software was used (Review Manager, Version 5.3.5 for Windows; The Cochrane Collaboration). In total, 100 publications including the search terms were identified. Six studies were included for qualitative analysis, and two studies were included for quantitative analysis (meta‐analysis). The association between excess weight and RPL was significant (OR, 1.34; 95% CI, 1.05–1.70; P = 0.02). The isolated analyses of the groups of obese and overweight women revealed an association only between obesity and RPL (OR, 1.75; 95% CI, 1.24–2.47; P = 0.001). The data available in the current literature revealed that obese women with a history of RPL have a high risk of future pregnancy losses, a risk which was not found among overweight women.