Journal of Autism and Developmental Disorders

, Volume 40, Issue 12, pp 1423–1430

Maternal Infection Requiring Hospitalization During Pregnancy and Autism Spectrum Disorders

  • Hjördis Ó. Atladóttir
  • Poul Thorsen
  • Lars Østergaard
  • Diana E. Schendel
  • Sanne Lemcke
  • Morsi Abdallah
  • Erik T. Parner
Original Paper

DOI: 10.1007/s10803-010-1006-y

Cite this article as:
Atladóttir, H.Ó., Thorsen, P., Østergaard, L. et al. J Autism Dev Disord (2010) 40: 1423. doi:10.1007/s10803-010-1006-y

Abstract

Exposure to prenatal infection has been suggested to cause deficiencies in fetal neurodevelopment. In this study we included all children born in Denmark from 1980, through 2005. Diagnoses of autism spectrum disorders (ASDs) and maternal infection were obtained through nationwide registers. Data was analyzed using Cox proportional hazards regression. No association was found between any maternal infection and diagnosis of ASDs in the child when looking at the total period of pregnancy: adjusted hazard ratio = 1.14 (CI: 0.96–1.34). However, admission to hospital due to maternal viral infection in the first trimester and maternal bacterial infection in the second trimester were found to be associated with diagnosis of ASDs in the offspring, adjusted hazard ratio = 2.98 (CI: 1.29–7.15) and adjusted hazard ratio = 1.42 (CI: 1.08–1.87), respectively. Our results support prior hypotheses concerning early prenatal viral infection increasing the risk of ASDs.

Keywords

Autism spectrum disorderAutismInfectionInfluenzaPrenatal infectionMaternal infection

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Hjördis Ó. Atladóttir
    • 1
  • Poul Thorsen
    • 2
  • Lars Østergaard
    • 3
  • Diana E. Schendel
    • 4
  • Sanne Lemcke
    • 1
  • Morsi Abdallah
    • 1
  • Erik T. Parner
    • 5
  1. 1.Department of Epidemiology, Institute of Public HealthUniversity of AarhusÅrhus CDenmark
  2. 2.AtlantaUSA
  3. 3.Department of Infectious Diseases, Research Unit QAarhus University HospitalSkejbyDenmark
  4. 4.National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and PreventionAtlantaUSA
  5. 5.Department of Biostatistics, Institute of Public HealthUniversity of AarhusÅrhusDenmark