Several risk factors associated with<unk><unk>  (AS) and austim spectrum disorder (ASD) are: male gender, older parental age, family history of austim spectrum disorder (ASD), prematurity, low birth weight and pregnancy complications.
Asperger syndrome risk factors
Mental retardation risk factors
Fragile X syndrome risk factors
Attention-deficit hyperactivity disorder risk factors
Alzheimer's disease family impact
Amnesia risk factors
Hearing impairment risk factors
Psychosis risk factors