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Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Obsessive-compulsive disorder epidemiology and demographics

Introduction

Overview

Overview

Once believed to be rare, OCD was found to have a lifetime prevalence of 2,300 per 100,000 (2.3%) of the overall population. The twelve month prevalence of OCD is 1,200 per 100,000 (1.2%) of the overall population.[1][2] Discovery of effective treatments and education of patients and health care providers have significantly increased the identification of individuals with OCD. International studies have shown a similar incidence and prevalence of OCD worldwide.

Epidemiology and Demographics

Epidemiology and Demographics

  • Obsessive compulsive disorder has a lifetime prevalence of 2,300 per 100,000 (2.3 percent), though many cases of OCD go untreated in primary care settings.[2][3]
  • The 12-month prevalence of obsessive compulsive disorder in the general population is 1,200 per 100,000 (1.2%).[1]
  • Individuals who have not completed high school have a higher lifetime prevalence of OCD (3.4 percent) than those who have (1.9 percent ). Those with a college diploma, on the other hand, have a higher lifetime prevalence (3.1 percent) than those with only a high school diploma (2.4 percent ).
  • The average age of onset for OCD is 19.5 years old, but it can range from late adolescence to the mid-20s in both sexes. However, the age of onset for males is younger than that for females.[4]
  • According to a 2008 study, OCD symptoms in Japanese patients are similar to those in Western countries, proving that the disorder transcends culture and geography[5]
  • Sufferers are thought to have above-average intelligence because the disorder necessitates complicated thinking patterns.
Overview

Overview

Epidemiology and Demographics

Epidemiology and Demographics

Prevalence

  • The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
  • In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.
  • The prevalence of [disease/malignancy] is estimated to be [number] cases annually.

Case-fatality rate/Mortality rate

  • In [year], the incidence of [disease name] is approximately [number range] per 100,000 individuals with a case-fatality rate/mortality rate of [number range]%.
  • The case-fatality rate/mortality rate of [disease name] is approximately [number range].

Age

  • Patients of all age groups may develop [disease name].
  • The incidence of [disease name] increases with age; the median age at diagnosis is [#] years.
  • [Disease name] commonly affects individuals younger than/older than [number of years] years of age.
  • [Chronic disease name] is usually first diagnosed among [age group].
  • [Acute disease name] commonly affects [age group].

Race

  • There is no racial predilection to [disease name].
  • [Disease name] usually affects individuals of the [race 1] race. [Race 2] individuals are less likely to develop [disease name].

Gender

  • [Disease name] affects men and women equally.
  • [Gender 1] are more commonly affected by [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1.

Region

  • The majority of [disease name] cases are reported in [geographical region].
  • [Disease name] is a common/rare disease that tends to affect [patient population 1] and [patient population 2].

Developed Countries

Developing Countries

References

References

  1. ↑ 1.0 1.1 Diagnostic and statistical manual of mental disorders : DSM-5. Washington, D.C: American Psychiatric Association. 2013. ISBN 0890425558.
  2. ↑ 2.0 2.1 Hirschtritt ME, Bloch MH, Mathews CA (2017). “Obsessive-Compulsive Disorder: Advances in Diagnosis and Treatment”. JAMA. 317 (13): 1358–1367. doi:10.1001/jama.2017.2200. PMID 28384832.
  3. ↑ Osland S, Arnold PD, Pringsheim T (2018). “The prevalence of diagnosed obsessive compulsive disorder and associated comorbidities: A population-based Canadian study”. Psychiatry Res. 268: 137–142. doi:10.1016/j.psychres.2018.07.018. PMID 30025284.
  4. ↑ Antony, M. M.; F. Downie & R. P. Swinson. “Diagnostic Issues and Epidemiology in Obsessive-Compulsive Disorder”. in Obsessive-Compulsive Disorder: Theory, Research, and Treatment, eds. M. M. Antony; S. Rachman; M. A. Richter & R. P. Swinson. New York: The Guilford Press, 1998, pp. 3-32.
  5. ↑ Matsunaga, H.; Maebayashi, K., Hayashida, K., Okino, K., Matsui, T., Iketani, T., Kiriike, N., Stein, D. J. (1 February 2008). “Symptom Structure in Japanese Patients With Obsessive-Compulsive Disorder”. American Journal of Psychiatry 165 (2): 251–253. doi:10.1176/appi.ajp.2007.07020340. PMID 18006873. Retrieved 25 January 2012.

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Priyanka Kumari, M.B.B.S[2]Sonya Gelfand, Abhishek Reddy, Kiran Singh, M.D. [3], Usama Talib, BSc, MD [4]