This paper reviews several converging lines of research that suggest that prenatal exposure
to environmental stress may increase risk for Autistic Disorder (AD). We first discuss studies …

Background and Objectives Study of the impact of socioeconomic status on autism spectrum
disorders (ASD) and severe intellectual disabilities (ID) has yielded conflicting results …

While abnormalities in head circumference in autism have been observed for decades, it is
only recently that scientists have begun to focus in on the developmental origins of such a …

Context Autism spectrum disorders (ASDs) have been suggested to represent the extreme
end of a normal distribution of autisticlike traits (ALTs). However, the evidence of this notion …

OBJECTIVE. The survival of very low birth weight infants has increased markedly in recent
years. Unfortunately, the prevalence of significant and lifelong motor, cognitive, and …

We conducted a linked database cohort study of infants born between 1990 and 2002 in
Nova Scotia, Canada. Diagnoses of autism were identified from administrative databases …

OBJECTIVE: To examine the relationship between birth weight, gestational age, small for
gestational age (SGA), and 3 of the most common autism spectrum disorder (ASD) subtypes …

Objective To explore the association between maternal and paternal age and risk of autism
spectrum disorders (ASDs) in offspring. Design Historical birth cohort study. Setting Kaiser …

Recent evidence supports a role for genetics in autism, but other findings are difficult to
reconcile with a purely genetic cause. Pathological changes in the cerebellum in autism are …

OBJECTIVE: Epidemiological studies in the United States consistently find autism spectrum
disorders (ASD) to be overrepresented in high socioeconomic status (SES) families. These …