- About 2% of the U.S. population has OCD in a given year.
- OCD typically begins during adolescence or early childhood; at least one-third of the cases of adult OCD began in childhood.
- OCD affects men and women equally.
- OCD cost the U.S. $8.4 billion in 1990 in social and economic losses, nearly 6% of the total mental health bill of $148 billion.