Prevalence of obsessive-compulsive disorder in the United States
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Lifetime Prevalence of Obsessive-Compulsive Disorder in the United States
Large-scale studies consistently show that the lifetime prevalence of obsessive-compulsive disorder (OCD) among adults in the United States is around 2% to 3%145710. The National Comorbidity Survey Replication found a lifetime prevalence of 2.3% for OCD, with a 12-month prevalence of 1.2%45. Earlier community-based studies, such as the Epidemiologic Catchment Area (ECA) program, reported lifetime prevalence rates ranging from 1.9% to 3.3% depending on diagnostic criteria18. These rates are much higher than earlier estimates based on clinical populations, highlighting that OCD is more common in the general population than previously thought18.
Prevalence in Children and Adolescents
Research indicates that OCD is also present in younger populations. A direct epidemiological study in a U.S. county found a current prevalence of 1% and a lifetime prevalence of 1.9% among adolescents, which is similar to adult rates9. Medicaid claims data from New York State showed a diagnosed prevalence of 0.2% among children, but this likely underestimates true prevalence due to underdiagnosis and undertreatment in public health systems39.
Consistency Across Demographics and International Comparisons
OCD prevalence rates are consistent across different U.S. communities and are similar to those found in other countries using comparable diagnostic methods1810. International studies report annual prevalence rates between 1.1% and 1.8% in most countries, with the U.S. figures falling within this range10. There is no significant difference in prevalence between men and women, and the disorder often begins in childhood or adolescence4910.
Underdiagnosis and Treatment Gaps
Despite its prevalence, OCD is often underdetected and undertreated in the United States. Many individuals with OCD do not receive a diagnosis or appropriate treatment, with less than half of diagnosed individuals receiving recommended medications or psychotherapy37. Lack of awareness among both patients and clinicians, as well as misdiagnosis, contribute to these gaps in care7. Digital health technologies and increased education are suggested as ways to improve detection and treatment rates7.
Conclusion
OCD affects about 2% to 3% of the U.S. population over their lifetime, with similar rates in children, adolescents, and adults. The disorder is consistent across different communities and demographic groups. However, significant gaps remain in diagnosis and treatment, indicating a need for better awareness and healthcare strategies to address OCD in the United States134578910.
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