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Validation of the Brazilian version of mini-test CASI-S

2005; Thieme Medical Publishers (Germany); Volume: 63; Issue: 2b Linguagem: Inglês

10.1590/s0004-282x2005000300010

1678-4227

Alfredo Damasceno, Adriane Maira Delicio, Daniel Ferraz de Campos Mazo, João Flávio Daniel Zullo, Patricia Teresinha Scherer, Ronny Tah Yen Ng, Benito Pereira Damasceno,

Dementia and Cognitive Impairment Research

OBJECTIVE: To determine CASI-S accuracy in the diagnosis of dementia. METHOD: The Cognitive Abilities Screening Instrument - Short Form (CASI-S) was applied in 43 Alzheimer's disease (AD) patients and 74 normal controls. AD diagnosis was based on DSM-IV, NINCDS-ADRDA, and CAMDEX. CASI-S includes: registration, temporal orientation, verbal fluency (4-legged animals in 30s), and recall (3 words). Its maximum score is 33 points. A copy of 2 pentagons was added. RESULTS: ROC curve showed an accuracy of 0.87, with standard error of 0.032, and 95% confidence intervall between 0.795 and 0.925. The cut-off score for cognitive deficit was 23, with sensitivity of 76.7%, specificity 86.5%, positive likelihood ratio (LR) 5.68, and negative LR 0.27. The cut-off score for subjects 70 years or older was 20, with sensitivity of 71.4% and specificity 97.1%. CONCLUSION: CASI-S is a practical test, with high specificity, particularly in individuals above 70 years of age. The adding of the drawing test did not improve its accuracy.