[Application of factor analysis in development and validation of a new questionnaire for quality of life].
ABSTRACT To explore the application of factor analysis in creating a new health-related questionnaire for evaluating quality of life, the Chinese for Quality of Life Instrument (ChQOL).
Two hundred and seventy-three subjects selected from two provinces of North China (Ningxia) and South China (Guangdong) were investigated by ChQOL, and the preliminary version was completed with factor analysis.
Fifty items were developed using factor analysis. The final structure model of ChQOL was confirmed through the screening and verification of factor structural model on the 78 items of ChQOL, a new questionnaire with more rational structure was confirmed.
Factor analysis is an effective method in developing new questionnaire.
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ABSTRACT: This paper describes the methods and theories of patient-reported outcomes, in particular to the health-related quality of life recently applied in Chinese medicine research. It begins with an investigation of the reasons for a patient-reported outcomes measure for Chinese medicine and the development of a new health-related quality of life instrument based on Chinese culture and Chinese medicine. Discussions on the importance and application of patient-reported outcomes as well as the relationship between quality of life and Chinese medicine are at the focus of this paper. Through a description of the Chinese Quality of Life Instrument and its development, the present work demonstrates an evidence-based approach using patient-reported outcomes or health-related quality of life measures to evaluate treatment efficacy of Chinese medicine, and thereby build a bridge for the integration of Chinese medicine into mainstream health care.The American Journal of Chinese Medicine 02/2005; 33(6):897-902. DOI:10.1142/S0192415X05003533 · 2.63 Impact Factor