Demographics
According to the National Institute of Mental Health (NIMH), between
3 and 7 percent of children in the United States have ADHD. This group
would include about 2 million children as of 2008. Worldwide, the rate of
ADHD in children is thought to be somewhere between 8 and 12 percent.
Boys are three to five times more likely than girls to be diagnosed
with ADHD. The inattentiveness subtype is more common in girls than
in boys, however. As far as is known, ADHD is equally common in all
racial and ethnic groups in the United States.
In adults, the gender ratio is virtually equal. The rate of ADHD in
American adults is thought to be between 2 and 7 percent.
3 and 7 percent of children in the United States have ADHD. This group
would include about 2 million children as of 2008. Worldwide, the rate of
ADHD in children is thought to be somewhere between 8 and 12 percent.
Boys are three to five times more likely than girls to be diagnosed
with ADHD. The inattentiveness subtype is more common in girls than
in boys, however. As far as is known, ADHD is equally common in all
racial and ethnic groups in the United States.
In adults, the gender ratio is virtually equal. The rate of ADHD in
American adults is thought to be between 2 and 7 percent.
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