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Am J Psychiatry. 2001 Jul;158(7):1091-8.

A Norwegian psychiatric epidemiological study.

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  • 1Department of Psychiatry, University of Oslo, Norway.

Abstract

OBJECTIVE:

This study reports results of a large-scale epidemiological investigation of the prevalence of mental disorder in Oslo.

METHOD:

A random sample of Oslo residents age 18-65 years was drawn from the Norwegian National Population Register. A total of 2,066 subjects, 57.5% of the original sample, were interviewed with the Composite International Diagnostic Interview in 1994-1997. The mean age of the interviewed subjects was 39.3 years.

RESULTS:

The 12-month prevalence of all mental disorders was 32.8%, and the lifetime prevalence was 52.4%. Alcohol abuse/dependence and major depression had the highest lifetime prevalence and 12-month prevalences. All mental disorders were more prevalent in women than in men, with the exception of alcohol and drug abuse/dependence. Severe psychopathology (e.g., three or more diagnoses) was found in 14%-15% of the respondents. The lifetime and 12-month prevalences for all diagnostic categories except drug abuse/dependence were similar to those found in the United States Comorbidity Survey.

CONCLUSIONS:

Epidemiological data for Oslo show that the lifetime and 12-month prevalences of mental disorder are quite high, with alcohol abuse/dependence and major depression particularly frequent. The rates for women are higher than those for men for all diagnostic categories, except for alcohol and drug abuse/dependence.

PMID:
11431231
[PubMed - indexed for MEDLINE]
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