Mental Disorders in America (cont.)
- Autism affects an
estimated 1 to 2 per 1,000 people.
- Autism and related disorders (also called
autism spectrum disorders or pervasive developmental disorders) develop in
childhood and generally are apparent by age 3.
- Autism is about 4 times more
common in boys than girls. Girls with the disorder, however, tend to have more
severe symptoms and greater cognitive impairment.
- Alzheimer's disease, the most common cause of dementia among people age 65 and
older, affects an estimated 4 million Americans.
- As more and more Americans live
longer, the number affected by Alzheimer's disease will continue to grow unless
a cure or effective prevention is discovered.
- The duration of illness, from
onset of symptoms to death, averages 8 to 10 years.
For more information about these conditions, please visit the following
Portions of the above information has been provided with the kind permission
of the National Institute of Mental Health, National Institutes of Health (http://www.nimh.nih.gov/publicat/numbers.cfm).Last Editorial Review: 7/7/2004