| Author: | Chan, Lai-lok |
| Title: | A study of validity and reliability of the Quality of Life-Alzheimer's Disease (Chinese version) |
| Degree: | M.Sc. |
| Year: | 2009 |
| Subject: | Hong Kong Polytechnic University -- Dissertations. Alzheimer's disease -- Patients -- Long term care Quality of life -- Measurement. |
| Department: | School of Nursing |
| Pages: | viii, 127 leaves : ill. ; 30 cm. |
| Language: | English |
| Abstract: | Background: "Quality of life" was identified as a central goal in the treatment of dementia (Logsdon et al., 2007). Measurement of quality of life is essential in clinical practice and is also one of the major outcome measures for interventions in dementia. The aim of this study is to establish the validity and reliability of the Chinese version of the Quality of Life - Alzheimer's Disease (C-QoL-AD). The QoL-AD is a 13-item instrument specifically designed to measure the quality of life of people with dementia. It is rated by both clients with dementia and their caregivers. Method: The content validity of the C-QoL-AD was established using an expert panel. All items were considered as culturally relevant, with slight modifications made. The C-QoL-AD was administered to 94 nursing home residents with dementia and their nurse caregivers. All except six residents with dementia were able to complete the C-QoL-AD. The convergent validity of C-QoL-AD was examined using correlation tests with Geriatric Depression Scale (GDS). The concurrent validity was evaluated through the correlation of Personal Wellbeing Index - Intellectual Disability (PWI-ID) with C-QoL-AD. Results: Findings of factor analysis showed that three factors were extracted with eigenvalues greater than 1 (5.58, 1.34, 1.01) and all items contributed to factor 1. It implied that the 13 items of C-QoL-AD functioned as a scale in measuring quality of life in dementia. A significant negative correlation (r=-0.414, p < 0.001) was found between the C-QoL-AD and GDS. A strong and positive correlation (r=0.83, p=0.01) was found between the C-QoL-AD and PWI-ID. The internal consistency of the C-QoL-AD was considered good; the Cronbach's alpha values of patient-report, caregiver report and weighted total score were 0.87, 0.83 and 0.89 respectively. Excellent test-retest reliability (ICC = 0.910) and inter-rater reliability (ICC = 0.984) of the C-QoL-AD was found. The C-QoL-AD shown a significant association with the Barthel Index (r=0.299, p=0.005). It did not show correlation with age, gender, duration of residential living, co-mobidity, financial status, visual functioning, Elderly Mobility Scale, and Mini-Mental State Examination score of individuals with dementia. Conclusion: The findings suggest that the C-QoL-AD is a valid and reliable instrument to evaluate the quality of life of older Hong Kong Chinese individuals with dementia living in long-term care settings. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b2303581x.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 7.45 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/4548