Journal
BRITISH JOURNAL OF PSYCHIATRY
Volume 185, Issue -, Pages 429-436Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1192/bjp.185.5.429
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Background The Geriatric Mental State (GMS) is the most widely used psychiatric research assessment for older persons. Evidence for validity comes from the developed world. Aims To assess the validity of GMS/ AGECATorganicity and depression diagnoses in 26 centres in India,China, Latin America and Africa. Method We studied 2941 persons aged 60 years and over: 742 people with dementia and three groups free of dementia (697 with depression, 719 with high and 783 with low levels of education). Local clinicians diagnosed dementia (DSM -IV) and depression (Montgomery-Asberg Depression Rating Scale score greater than or equal to, 18). Results For dementia diagnosis GMS/ AGECAT performed well in many centres but educational bias was evident. Specificity was poor in India and sensitivity sub-optimal in Latin America. A predictive algorithm excluding certain orientation items but including interviewer judgements improved upon the AGECAT algorithm. For depression, sensitivity was high. The EURO-D depression scale, derived from GMS items using European data, has a similar factor structure in Latin America, India and, to a lesser extent, China. Conclusions Valid, comprehensive mental status assessment across cultures seems achievable in principle. Declaration of interest None.
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