Value of the general health questionnaire in detecting psychiatric morbidity in a general hospital out-patient population.

On administering the General Health Questionnaire (GHQ) in English, Gujarati and Marathi, to 500 non-acutely ill adult patients selected randomly from a General Hospital Out-patient Department, it was found that 57% scored high (12 and above), indicating the possibility of psychiatric morbidity in this group. On subjecting 50 of these patients to blind psychiatric evaluation a misclassification rate of 30% was observed with respect to the G. H.