Journal of Autism and Developmental Disorders

, Volume 42, Issue 9, pp 2000–2005

Brief Report: Maternal Smoking During Pregnancy and Autism Spectrum Disorders

Authors

    • Department of Epidemiology and BiostatisticsDrexel University School of Public Health
  • Renee M. Gardner
    • Division of Metals and Health, Institute of Environmental MedicineKarolinska Institutet
  • Henrik Dal
    • Division of Public Health Epidemiology, Department of Public Health SciencesKarolinska Institutet
  • Anna Svensson
    • Division of Public Health Epidemiology, Department of Public Health SciencesKarolinska Institutet
  • Maria Rosaria Galanti
    • Department of MedicineClinical Epidemiology Unit at the Karolinska University Hospital
  • Dheeraj Rai
    • Academic Unit of Psychiatry, School of Social and Community MedicineUniversity of Bristol
    • Avon and Wiltshire Partnership NHS Mental Health Trust
  • Christina Dalman
    • Division of Public Health Epidemiology, Department of Public Health SciencesKarolinska Institutet
  • Cecilia Magnusson
    • Division of Public Health Epidemiology, Department of Public Health SciencesKarolinska Institutet
Brief Report

DOI: 10.1007/s10803-011-1425-4

Cite this article as:
Lee, B.K., Gardner, R.M., Dal, H. et al. J Autism Dev Disord (2012) 42: 2000. doi:10.1007/s10803-011-1425-4

Abstract

Prenatal exposure to tobacco smoke is suggested as a potential risk factor for autism spectrum disorders (ASD). Previous epidemiological studies of this topic have yielded mixed findings. We performed a case–control study of 3,958 ASD cases and 38,983 controls nested in a large register-based cohort in Sweden. ASD case status was measured using a multisource case ascertainment system. In adjusted results, we found that maternal smoking during pregnancy is not associated with increased risk of ASD regardless of presence or absence of comorbid intellectual disability. Apparent associations were attributable to confounding by sociodemographic characteristics of parents such as education, income, and occupation.

Keywords

AutismPopulation registerSmokingSwedenTobacco

Copyright information

© Springer Science+Business Media, LLC 2011