Tardive Dyskinesia in India

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Abstract
We screened the entire inpatient population (N = 1963) of a state hospital near Bombay, India, for tardive dyskinesia (TD) using specific diagnostic criteria. Prevalence of TD was found to be 9.6%, which was much lower than that reported from the Western countries. Percent prevalence of TD was greatest in the age group 41 to 50, after which it seemed to decline. TD patients had received neuroleptic treatment for significantly longer periods and in significantly greater amounts than non-TD patients. The principal reason for the relatively low prevalence of TD in India is probably the practice of using neuroleptics in comparatively small doses (mean daily dose is about 200 mg of chlorpromazine equivalents). A possible contribution of racial-genetic factors cannot be excluded.

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