Is season of birth a risk factor for attention-deficit hyperactivity disorder?

Abstract

OBJECTIVE To investigate seasonal variations in the birth patterns of children with attention-deficit hyperactivity disorder (ADHD) in reference to a group of normal control children, attending to issues of comorbidity, familiality, and learning disability. METHOD Subjects were boys with DSM-III-R ADHD (n = 140) and normal controls (n = 120). The ADHD… (More)

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