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Antibiotic exposure in early life and childhood overweight and obesity: A systematic review and meta‐analysis
Author(s) -
Rasmussen Sara H.,
Shrestha Sarita,
Bjerregaard Lise G.,
Ängquist Lars H.,
Baker Jennifer L.,
Jess Tine,
Allin Kristine H.
Publication year - 2018
Publication title -
diabetes, obesity and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.445
H-Index - 128
eISSN - 1463-1326
pISSN - 1462-8902
DOI - 10.1111/dom.13230
Subject(s) - overweight , medicine , meta analysis , obesity , odds ratio , confidence interval , childhood obesity , antibiotics , pediatrics , observational study , early childhood , psychology , biology , developmental psychology , microbiology and biotechnology
We conducted a systematic review and meta‐analysis of observational studies investigating the association between antibiotic exposure in infancy and risk of childhood overweight and obesity. Thirteen studies, including a total of 527 504 children, were included in the systematic review and 8 were included in meta‐analyses. Exposure to antibiotics in infancy was associated with an increased odds ratio (OR) of childhood overweight and obesity (OR 1.11, 95% confidence interval [CI] 1.02‐1.20). Whereas exposure to 1 treatment only and exposure between 6 and 24 months were not associated with increased risk of childhood overweight and obesity, exposure to >1 treatment was associated with an OR of 1.24 (95% CI 1.09‐1.43) and exposure within the first 6 months of life was associated with an OR of 1.20 (95% CI 1.04‐1.37). In conclusion, antibiotic exposure in infancy was associated with a slightly increased risk of childhood overweight and obesity, mainly if children were exposed to repeated treatments or treatment within the first 6 months of life. It is unclear whether this association is mediated via direct effects of antibiotics on the gut microbiota.

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