The Clock Drawing Test (CDT) is an inexpensive, fast and easily administered measure of cognitive function, especially in the elderly. This instrument is a popular clinical tool widely used in screening for cognitive disorders and dementia. The CDT can be applied in different ways and scoring procedures also vary. Objective: The aims of this study were to analyze the performance of elderly on the CDT and evaluate inter-rater reliability of the CDT scored by using a specific algorithm method adapted from Sunderland et al. (1989). Methods: We analyzed the CDT of 100 cognitively normal elderly aged 60 years or older. The CDT (“free-drawn”) and Mini-Mental State Examination (MMSE) were administered to all participants. Six independent examiners scored the CDT of 30 participants to evaluate inter-rater reliability. Results and Conclusion: A score of 5 on the proposed algorithm (“Numbers in reverse order or concentrated”), equivalent to 5 points on the original Sunderland scale, was the most frequent (53.5%). The CDT specific algorithm method used had high inter-rater reliability (p<0.01), and mean score ranged from 5.06 to 5.96. The high frequency of an overall score of 5 points may suggest the need to create more nuanced evaluation criteria, which are sensitive to differences in levels of impairment in visuoconstructive and executive abilities during aging.
CITATION STYLE
Mendes-Santos, L. C., Mograbi, D., Spenciere, B., & Charchat-Fichman, H. (2015). Método Com Algoritmo Específico Para Pontuação Do Teste Do Desenho Do Relógio Em Idosos Cognitivamente Normais. Dementia e Neuropsychologia, 9(2), 128–135. https://doi.org/10.1590/1980-57642015DN92000007
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