Criterion Validity of the Cross-Cultural Cognitive Examination in Japan

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Abstract
Criterion validity of a two-stage cross-cultural cognitive Examination (CCCE) designed for epidemiologic use was evaluated in japanese subjects by comparison with a physician's DSM-III-R diagnosis of dementia and the hasegawa Dementia Rating Scale (the standard Japanese instrument similar to the Mini-Mental State exam). We report on 188 subjects tested in three locations in Japan: Tokyo area, Ise, and Osaka. Subjects ranged in age (50-93 years) and education (1-22 years) and included neurology outpatients, community volunteers, and inpatients. The CCCE was 97.4% specific for dementia, with sensitivity of 88%. The correlation with the Hasegawa scale was significant (r(175) = .8230, p < .0001). Diagnosis using the CCCE showed good validity when compared with Japanese criteria for dementia. If the instrument could be shown to be reliable and more “culture fair” than the currently available tests, it may be useful in cross-cultural epidemiologic studies of dementia

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