title: Validity of the scaled version of the General Health Questionnaire (GHQ-28) in a Spanish population.
abstract: This study confirms the validity of a Spanish version of the General Health Questionnaire in its scaled 28-item version. The screening instrument was tested on a sample of 100 patients attending an internal medicine out-patient clinic, who were examined independently by psychiatrists standardized in the use of the Clinical Interview Schedule (CIS). The questionnaire correctly identified 85% of 'cases' with a cutting score of 6/7 (sensitivity 76.9%, specificity 90.2%), and 83% of cases with a cutting score of 5/6 (sensitivity 84.6%, specificity 82%), suggesting a discriminative power almost as good as the Spanish GHQ-60. It has the important advantage of being considerably shorter and, although the 4 subscales are by no means independent, its concurrent validity with CIS ratings suggests that they provide additional information concerning anxiety and depression.
mesh_terms: D000275:Adjustment Disorders / Q000175:diagnosis; D000328:Adult; D001008:Anxiety Disorders / Q000175:diagnosis; D003866:Depressive Disorder / Q000175:diagnosis; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis*; D011581:Psychological Tests; D011594:Psychometrics; D013001:Somatoform Disorders / Q000175:diagnosis; D013030:Spain