Association between prenatal antibiotic exposure and autism spectrum disorder among term births: A population-based cohort study.

Autor: Nitschke AS; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada., do Valle HA; Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, British Columbia, Canada., Vallance BA; BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada., Bickford C; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada., Ip A; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.; BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.; Division of Developmental Pediatrics, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada., Lanphear N; BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.; Division of Developmental Pediatrics, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada., Lanphear B; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.; Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada., Weikum W; BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.; Division of Developmental Pediatrics, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada., Oberlander TF; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.; BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.; Division of Developmental Pediatrics, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada., Hanley GE; Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, British Columbia, Canada.; BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.
Jazyk: angličtina
Zdroj: Paediatric and perinatal epidemiology [Paediatr Perinat Epidemiol] 2023 Aug; Vol. 37 (6), pp. 516-526. Date of Electronic Publication: 2023 Mar 28.
DOI: 10.1111/ppe.12972
Abstrakt: Background: Prenatal antibiotic exposure induces changes in the maternal microbiome, which could influence the development of the infant's microbiome-gut-brain axis.
Objectives: We assessed whether prenatal antibiotic exposure is associated with an increased risk of autism spectrum disorder (ASD) in offspring born at term.
Methods: This population-based retrospective cohort study included everyone who delivered a live singleton-term infant in British Columbia, Canada between April 2000 and December 2014. Exposure was defined as filling antibiotic prescriptions during pregnancy. The outcome was an ASD diagnosis from the British Columbia Autism Assessment Network, with a follow-up to December 2016. To examine the association among pregnant individuals treated for the same indication, we studied a sub-cohort diagnosed with urinary tract infections. Cox proportional hazards models were used to estimate unadjusted and adjusted hazard ratios (HR). The analysis was stratified by sex, trimester, cumulative duration of exposure, class of antibiotic, and mode of delivery. We ran a conditional logistic regression of discordant sibling pairs to control for unmeasured environmental and genetic confounding.
Results: Of the 569,953 children included in the cohort, 8729 were diagnosed with ASD (1.5%) and 169,922 were exposed to prenatal antibiotics (29.8%). Prenatal antibiotic exposure was associated with an increased risk of ASD (HR 1.10, 95% confidence interval [CI] 1.05, 1.15), particularly for exposure during the first and second trimesters (HR 1.11, 95% CI 1.04, 1.18 and HR 1.09, 95% CI 1.03, 1.16, respectively), and exposure lasting ≥15 days (HR 1.13, 95% CI 1.04, 1.23). No sex differences were observed. The association was attenuated in the sibling analysis (adjusted odds ratio 1.04, 95% CI 0.92, 1.17).
Conclusions: Prenatal antibiotic exposure was associated with a small increase in the risk of ASD in offspring. Given the possibility of residual confounding, these results should not influence clinical decisions regarding antibiotic use during pregnancy.
(© 2023 The Authors. Paediatric and Perinatal Epidemiology published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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