1. Development and validation of a quality of life instrument for patients with drug dependence: Comparisons with SF-36 and WHOQOL-100
- Author
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Wan, Chonghua, Fang, Jiqian, Jiang, Runsheng, Shen, Jie, Jiang, Dan, Tu, Xin, Messing, Susan, and Tang, Wan
- Subjects
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QUALITY of life , *AGE distribution , *ANALYSIS of variance , *CONCEPTUAL structures , *STATISTICAL correlation , *EXPERIMENTAL design , *FACTOR analysis , *HEALTH surveys , *INTERVIEWING , *RESEARCH methodology , *REGRESSION analysis , *RESEARCH funding , *SEX distribution , *T-test (Statistics) , *TRANSLATIONS , *SUBSTANCE abuse treatment , *SOCIOECONOMIC factors , *TREATMENT programs , *DRUG abusers , *PRE-tests & post-tests , *MULTITRAIT multimethod techniques , *RESEARCH methodology evaluation ,RESEARCH evaluation - Abstract
Abstract: Aim: Our goal was to develop a self-administered quality of life scale for patients with drug addiction/dependence (QOL-DA) and compare it with the SF-36 and the WHOQOL-100. Methods: Employing theory and methodology of rating scale construction, a self-administered quality of life instrument for individuals with drug dependence QOL-DA was developed and evaluated utilizing responses from 212 drug-dependent subjects at the Kunming Municipal Mandatory Detoxification and Rehabilitation Center in China. Quality of life was measured using the SF-36, WHOQOL-100 and QOL-DA three times during the detoxification. Results: Test–retest reliability in the domains of physical function, psychological function, social function and toxicity were 0.82, 0.64, 0.78, and 0.76, respectively. Cronbach''s coefficient α for the 4 domains was 0.87, 0.89, 0.93 and 0.86, respectively. Correlations and factor analysis showed good construct validity. Criterion-related and convergent validity was confirmed by using the SF-36 and the WHOQOL-100 simultaneously. The instrument does show the change in QOL after two weeks of detoxification with higher standardized response mean higher than that of SF-36 and WHOQOL-100. Conclusion: The instrument developed has good validity, reliability and better responsiveness than instruments currently used, and can be employed effectively to measure the quality of life of individuals with drug dependence. [Copyright &y& Elsevier]
- Published
- 2011
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