To examine the prevalence of obsessive-compulsive symptoms and DSM-IV obsessive-compulsive disorder (OCD), the authors conducted a telephone survey of 2,261 adults in four regions of Canada.
Trained lay interviewers administered a modified version of the OCD section of the Comprehensive International Diagnostic Interview.
A subsample of respondents with probable cases and probable subclinical cases of OCD was then blindly reinterviewed by research personnel experienced in the assessment of OCD, using the Structured Clinical Interview for DSM-IV and the Yale-Brown Obsessive Compulsive Scale, to confirm the diagnosis and gauge the severity of OCD.
The weighted 1-month prevalence of OCD in the entire sample according to the lay interviews was 3.1%. Upon clinical reappraisal, the 1-month prevalence estimate of OCD dropped to 0.6% ; an additional 0.6% had subclinical OCD.
The mean Yale-Brown Obsessive Compulsive Scale score of the individuals with OCD was 19.0 (SD=4.6, median=21) ; for those with subclinical OCD, the mean score was 15.4 (SD=2.4, median=14).
Common reasons for overdiagnosis of OCD by the lay interviewers were inappropriate labeling of worries or concerns as obsessions and overestimating the degree of interference or distress attributable to obsessive-compulsive symptoms.
OCD, while hardly a rare condition, may be somewhat less prevalent than had been believed on the basis of previous surveys. (...)
Mots-clés Pascal : Obsession compulsion, Prévalence, Canada, Amérique du Nord, Amérique, Etude longitudinale, Evolution, Epidémiologie, Santé mentale, Homme, Trouble anxieux
Mots-clés Pascal anglais : Obsessive compulsive disorder, Prevalence, Canada, North America, America, Follow up study, Evolution, Epidemiology, Mental health, Human, Anxiety disorder
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0243663
Code Inist : 002B18C08B. Création : 11/09/1998.