About 3 to 5 percent of school-age children in the United States are thought to have AdHD. This means for a classroom of 20 to 30 students, on average there is one child with ADHD. Boys are four time more likely than girls to be diagnosed with ADHD.
ADHD is diagnosed in boys three of four times more often
About 20 million people.
Over 3 million people in the US stutter.
6%
There is evidence to suggest that several US Presidents may have had ADHD, including John F. Kennedy, Thomas Jefferson, and Theodore Roosevelt. ADHD was not formally recognized during their lifetimes, so it is impossible to definitively diagnose them. However, historical records and accounts of their behavior suggest that they exhibited traits consistent with ADHD.
According to the CDC, as of 2007 North Carolina has the highest rate of diagnosed ADHD in children(4-17) at 15.6%.
He got prevalence in the society during the dark period.His prevalence is growing by day and night.
Another word for prevalence is widespread.
onset /prevalence/
About 1 in 10 people are currently allergic to seafood in the United States.
The HIV prevalence in adults is about 14.3%
The prevalence of schizotypal personality disorder is estimated to range from 0.6% to 5.1%, with a median rate of about 3% of the nonclinical population. In a clinical sample of psychiatric patients, the prevalence ranged from 2.0% to 64%, with a median prevalence of 17.5%. This wide variation in prevalence rates may reflect the controversy surrounding the classification of schizotypal disorder as a separate personality disorder, instead of a component of schizophrenia.