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Autism Spectrum Disorders Health Center

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Adults With Autism at Risk for Many Health Problems

Research shows rates of mental, physical problems higher in these patients than among other adults

WebMD News from HealthDay

By Maureen Salamon

HealthDay Reporter

WEDNESDAY, May 14, 2014 (HealthDay News) -- Autism apparently isn't a stand-alone disorder, with new research revealing that adults with autism often face a host of mental and physical illnesses.

Kaiser Permanente researchers found that nearly all medical conditions are significantly more common in adults with autism spectrum disorders than those without, ranging from depression to gastrointestinal problems to obesity. Notably, however, adults with autism are much less likely to smoke or use alcohol than other adults, and cancer rates are similar.

"Some of these conditions we've seen in children with autism, so we expected higher rates of anxiety and depression, and some of the medical disorders, such as gastrointestinal disturbances, in adults," said study author Lisa Croen, director of the Kaiser Permanente Autism Research Program in Oakland, Calif.

"That's been reported for a long time in children, so we're not surprised to see those continue to be elevated," she added. "But we were surprised by the magnitude of what we found."

The study is scheduled to be presented Thursday at the International Meeting for Autism Research in Atlanta. Research presented at scientific conferences typically has not been peer-reviewed or published and results are considered preliminary.

Diagnosed in about 1 in 68 American children, autism spectrum disorder is the fastest-growing serious developmental disability in the United States, according to the advocacy and research organization Autism Speaks.

The disorder can be mild or severe, but symptoms typically include social and communication difficulties and repetitive behaviors.

Croen and her colleagues examined medical records from 2008 to 2012, and compared the prevalence of psychiatric, behavioral and medical diagnoses among 2,100 adults with an autism spectrum disorder to 21,000 adults without the disorder.

Adults diagnosed with an autism spectrum disorder had markedly higher rates of mental health problems than the other adults:

People with autism spectrum disorders were also more likely than adults without the disorder to have physical ailments, such as:

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