Stability of diagnosis of obsessive-compulsive disorder in the Epidemiologic Catchment Area study

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Abstract
OBJECTIVE: This study examined the 1-year temporal stability of a National Institute of Mental Health Diagnostic Interview Schedule (DIS) lifetime diagnosis of obsessive-compulsive disorder in the Epidemiologic Catchment Area (ECA) study. METHOD: In that study, 20,862 individuals, aged 18 years and over, at five sites were evaluated by lay interviewers using the DIS (wave 1). All of those who were available 12 months later were reinterviewed (wave 2). In the present study, the temporal stability of wave 1 obsessive-compulsive disorder diagnoses at wave 2 was examined, as well as relationships with comorbid diagnoses. The consistency of reports of "new-onset" illness was also examined. Factors contributing to these measures were evaluated. RESULTS: The temporal stability of the diagnosis of obsessive-compulsive disorder was very low. Subjects with a stable diagnosis of obsessive-compulsive disorder had a higher rate of both obsessions and compulsions, an earlier age at onset, and more comorbid anxiety, aff...

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