The prevalence of<unk><unk><unk>  disorder (ADHD) is estimated to be 5,000 per 100,000 (5%) children and 2,500 per 100,000 (2.5%) adults. Boys are more commonly affected by ADHD than girls. The male to female ratio is 2 to 1.
Attention-deficit hyperactivity disorder epidemiology and demographics
Bipolar disorder epidemiology and demographics
Asperger syndrome epidemiology and demographics
Obsessive-compulsive disorder epidemiology and demographics
Mental retardation epidemiology and demographics
Personality disorder epidemiology and demographics
Post traumatic stress disorder epidemiology and demographics
Schizophrenia epidemiology and demographics