Chronic antibiotic use during adulthood and weight change in the Sister Study
AffiliationUniv Arizona, Dept Commun Environm & Policy
MetadataShow full item record
PublisherPUBLIC LIBRARY SCIENCE
CitationFurlong M, Deming-Halverson S, Sandler DP (2019) Chronic antibiotic use during adulthood and weight change in the Sister Study. PLoS ONE 14(5): e0216959. https://doi.org/10.1371/journal.pone.0216959
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AbstractBackground/Objectives: Antibiotic use in early life has been associated with weight gain in several populations. However, associations between chronic antibiotic use and weight among adults in the general population are unknown. Subjects/Methods: The NIEHS Sister Study is a longitudinal cohort of sisters of women with breast cancer. We examined associations between chronic antibiotic use (>= 3 months) during the fourth decade of life (30-39 years) and subsequent obesity at enrollment (mean age = 55) via logistic regression. We also examined associations between chronic antibiotic use in the 5 years and 12 months prior to enrollment and weight gain after enrollment in linear mixed models. Models were adjusted for race/ethnicity, education, urban/rural status, age, and smoking. Results: In adjusted analyses (n = 50,237), chronic penicillin use during the 4 th decade of life was associated with obesity at enrollment (OR 2.00, 95% CI 1.40, 2.87), and use in the 5 years prior to enrollment was associated with increased BMI change after enrollment (beta 1.00 95% CI 0.01, 2.00). Use of bactericidals (OR 1.71, 95% CI 1.29, 2.26) during the 4 th decade of life was also associated with obesity at enrollment. Associations for penicillins and bactericidals were consistent across indications for use. Bacteriostatic use in the 5 years prior to enrollment was associated with a reduction in BMI after enrollment (beta -0.52, 95% CI -1.04, 0.00), and tetracycline use during the 4 th decade of life was associated with reduced odds of obesity at enrollment (OR 0.72, 95% CI 0.56, 0.92). However, these inverse associations were only present for those who reported taking antibiotics for skin purposes. Cephalosporins, macrolides, quinolones, and sulfonamides were not associated with BMI change over time. Conclusions: Chronic use of antibiotics during adulthood may have long-lasting impacts on BMI. Associations may differ by antibiotic class, and confounding by indication may be important for some antibiotic classes.
NoteOpen access journal
VersionFinal published version
SponsorsIntramural Research Program of the NIH, National Institute of Environmental Sciences [Z01ES044005]; NIEHS [T32ES007018, K99ES028743]; NIH
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