Cited by 52Autism Spectrum Disorder ResearchPrenatal Substance Exposure EffectsSmoking Behavior and Cessation

Maternal Prenatal Smoking and Autism Spectrum Disorder in Offspring: A California Statewide Cohort and Sibling Study

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von Ehrenstein, Ondine S, Cui, Xin, Yan, Qi, Aralis, Hilary, Ritz, Beate·2021·American Journal of Epidemiology

Abstract

We examined associations between maternal smoking and autism spectrum disorder (ASD) in children in a statewide population-based cohort and sibling-comparison design using California birth records (n = 2,015,104) with information on maternal smoking, demographic factors, and pregnancy (2007–2010). ASD cases (n = 11,722) were identified through California Department of Developmental Services records with diagnoses based on the Diagnostic and Statistical Manual of Mental Disorders–IV-TR. We estimated odds ratios for ASD with and without intellectual disability in the full cohort using logistic regression and in a sibling comparison using conditional logistic regression. In the full cohort, the adjusted odds ratio for ASD and maternal smoking 3 months before/during pregnancy compared with nonsmoking was 1.15 (95% confidence interval (CI): 1.04, 1.26), and it was similar in cases with (odds ratio = 1.12, 95% CI: 0.84, 1.49) and without intellectual disability (odds ratio = 1.15, 95% CI: 1.04, 1.27). Heavy prenatal smoking (≥20 cigarettes/day in any trimester) was related to an odds ratio of 1.55 (95% CI: 1.21, 1.98). In the sibling comparison, the odds ratio for heavy smoking was similarly elevated but the confidence interval was wide. Our findings are consistent with an increased risk for ASD in offspring of mothers who smoked ≥20 cigarettes/day during pregnancy; associations with lighter smoking were weaker.

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Crossref · 10.1093/aje/kwaa182

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Authors
von Ehrenstein, O. S., Cui, X., Yan, Q., Aralis, H., & Ritz, B.
Affiliations
University of California, Los Angeles (US)
Venue
American Journal of Epidemiology
Published
2020-08-24
Volume
190
Issue
5
Pages
728-737
ISSN
  • 0002-9262 (ISSN-L)
  • 1476-6256
OpenAlex
W3080620775
Cited by
52
References
60
Citations by year
2026: 6 · 2025: 14 · 2024: 13 · 2023: 7 · 2022: 5 · 2021: 5 · 2020: 2
FWCI
2.55
Type
journal article
Language
en
Open access
Locations
  • American Journal of Epidemiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Environmental Health Sciences (R21ES022389, R21ES025558)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Substance Exposure Effects
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
Keywords
maternal smoking, autism spectrum disorder, heavy smoking, intellectual disability, sibling comparison, pregnancy, birth cohort
MeSH terms
Autism Spectrum Disorder, California, Child, Female, Humans, Male, Pregnancy, Prenatal Exposure Delayed Effects, Registries, Smoking, Maternal Exposure, Siblings

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