The CHARGE study: an assessment of parental occupational exposures and autism spectrum disorder.

Objectives: The aim of this study is to determine if parental occupational exposure to 16 agents is associated with autism spectrum disorder (ASD).

Methods: Demographic, health and parental occupational data were collected as part of the CHildhood Autism Risks from Genetics and Environment study. The workplace exposure assessment was conducted by two experienced industrial hygienists for the parents of 537 children with ASD and 414 typically developing (TD) children.