Functional profile of Chinese elderly : a validation study on the disability assessment for dementia (Chinese version)

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Functional profile of Chinese elderly : a validation study on the disability assessment for dementia (Chinese version)

 

Author: Mok, Ching-man Cycbie
Title: Functional profile of Chinese elderly : a validation study on the disability assessment for dementia (Chinese version)
Degree: M.Sc.
Year: 2002
Subject: Hong Kong Polytechnic University -- Dissertations
Disability evaluation -- China -- Hong Kong
Motor ability -- Testing
Senile dementia -- China -- Hong Kong
Alzheimer's disease -- Patients -- China -- Hong Kong
Department: Multi-disciplinary Studies
Dept. of Rehabilitation Sciences
Pages: xii, 200 leaves ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1658977
URI: http://theses.lib.polyu.edu.hk/handle/200/3265
Abstract: Functional disability assessment is an integral part in the diagnosis and treatment of individuals with Alzheimer's disease (AD). This study aims to develop and validate the Chinese Version of the Disability Assessment for Dementia (CDAD) for evaluation of functional disability in people with AD in Hong Kong. Expert panels were set up to evaluate the content validity and the quality of translation of the CDAD. Based on the result of panel review, the CDAD was modified to handle issues of cultural relevance and 7 items were added to increase its representativeness. This field test version of the CDAD has 11 subscales and 47 items, with 22 items on basic ADL and 25 items on IADL. A total of 169 community residing participants with AD were recruited in the study of criterion-related validity and construct validity. Result revealed a high negative correlation between the CDAD and Global Deterioration Scale (GDS) (Spearman's rho = -.89, p < .001). ANOVA and post-hoc comparisons showed that the mean CDAD scores among elderly with different GDS ratings were significantly different. In the study of convergent validity, IADL subscore of CDAD was found to have high correlation with Instrumental Activities of Daily Living Scale (r = 0.94, p < .001), and the IADL subscore of CDAD was found to have high correlation with the Modified Barthel Index (r = 0.82, p < .001). A moderate correlation (r = 0.595, p< .001) with the Chinese Mini-Mental Status Examination (CMMSE) was found in the exploration of divergent validity. Results showed that internal consistency of the scale was high (Cronbach's alpha = 0.91). Estimated from a sample of 30 participants, test-retest reliability (ICC = 0.9978) and inter-rater reliability (ICC = 0.98) were excellent. Further analysis of the relationship with socio-demographic factors indicated that CDAD had no gender bias, and low correlation with age and education. There is strong evidence from the results that the CDAD is a valid and reliable instrument in assessing the functional disability of community residing individuals wit AD. The implications of this study for clinical practice and research would be further discussed.

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