The prevalence of minor psychiatric morbidity in the community.

The method is described of a point-prevalence survey of minor psychiatric morbidity among a sample of healthy community residents. The General Health Questionnaire was used as the sole means of case identification. The demographic characteristics of the sample were compared in detail with those of the total population. The factors mainly responsible for sample bias were difficulty with the English language, the varying degree of personal contact made with residents, and the difficulty in contacting the employed population during working hours. The overall response rate of the survey was 66-2%. The demographic groups found to be at significantly higher risk for minor psychiatric morbidity included women, the young, non-British migrant women, and lower social class men.