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Prepregnancy BMI, gestational weight gain and risk of childhood atopic dermatitis: A systematic review and meta‐analysis
Author(s) -
Chen Wenshu,
Wang Lei,
Yao Hao,
Dai Huan,
Zheng Rongying,
Zhang Weixi
Publication year - 2021
Publication title -
pediatric allergy and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.269
H-Index - 89
eISSN - 1399-3038
pISSN - 0905-6157
DOI - 10.1111/pai.13488
Subject(s) - medicine , underweight , body mass index , odds ratio , meta analysis , weight gain , overweight , pregnancy , confidence interval , obstetrics , pediatrics , relative risk , observational study , risk factor , body weight , biology , genetics
Background Maternal weight before and during pregnancy influences the health of offspring. Several observational studies have investigated a link between the risk of childhood atopic dermatitis (AD) and prepregnancy maternal body mass index (BMI) and gestational weight gain (GWG), but the conclusions of these studies were inconsistent. The aim of this review was to evaluate the association between the risk of childhood AD and prepregnancy maternal BMI and GWG. Methods The PubMed, Embase, Cochrane, Web of Science, and Scopus databases were searched from inception to February 2, 2021. Observational studies investigating the association between the risk of childhood AD and prepregnancy maternal BMI and GWG were included. Fixed‐ or random‐effects models with inverse variance weights were used to calculate pooled risk estimates. Subgroup analysis and sensitivity analysis were used to explore the sources of heterogeneity. Results Thirteen studies with a total of 114 485 participants were included. Ten studies reported prepregnancy maternal BMI, and five reported GWG. Maternal underweight was associated with a higher risk of childhood AD (odds ratio [OR] = 1.06; 95% confidence interval [CI], 1.02‐1.10). Continuous BMI was not related to childhood AD (OR = 1.00; 95% CI, 0.98‐1.02). In comparison with normal GWG, moderate/very high GWG increased the risk of childhood AD (OR = 1.05; 95% CI, 1.02‐1.08; OR = 1.13; 95% CI, 1.07‐1.19, respectively), while low GWG decreased the risk (OR = 0.92; 95% CI, 0.89‐0.96). Excessive GWG relative to recommendations was associated with a higher risk of childhood AD (OR = 1.05; 95% CI, 1.01‐1.10), while a lower risk of childhood AD was associated with inadequate GWG relative to recommendations (OR = 0.87, 95% CI: 0.83‐0.91). Conclusions Maternal underweight, high GWG, and excessive GWG relative to recommendations are associated with an elevated risk of childhood AD, while low GWG and inadequate GWG relative to recommendations decreased the risk. Weight management before and during pregnancy is encouraged for primary prevention of childhood AD.