Comorbid conditions Epidemiology of autism

autism associated several other conditions:

genetic disorders. 10–15% of autism cases have identifiable mendelian (single-gene) condition, chromosome abnormality, or other genetic syndrome, , asd associated several genetic disorders.
intellectual disability. fraction of autistic individuals meet criteria intellectual disability has been reported anywhere 25% 70%, wide variation illustrating difficulty of assessing autistic intelligence.
anxiety disorders common among children asd, although there no firm data. symptoms include generalized anxiety , separation anxiety, , affected age, level of cognitive functioning, degree of social impairment, , asd-specific difficulties. many anxiety disorders, such social phobia, not commonly diagnosed in people asd because such symptoms better explained asd itself, , difficult tell whether symptoms such compulsive checking part of asd or co-occurring anxiety problem. prevalence of anxiety disorders in children asd has been reported anywhere between 11% , 84%.
epilepsy, variations in risk of epilepsy due age, cognitive level, , type of language disorder; 5–38% of children autism have comorbid epilepsy, , 16% of these have remission in adulthood.
several metabolic defects, such phenylketonuria, associated autistic symptoms.
minor physical anomalies increased in autistic population.
preempted diagnoses. although dsm-iv rules out concurrent diagnosis of many other conditions along autism, full criteria adhd, tourette syndrome, , other of these conditions present , these comorbid diagnoses increasingly accepted. 2008 study found 70% of children asd had @ least 1 psychiatric disorder, including 30% social anxiety disorder , similar proportions adhd , oppositional defiant disorder. childhood-onset schizophrenia, rare , severe form, preempted diagnosis symptoms present along symptoms of autism.




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