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Zhonghua Liu Xing Bing Xue Za Zhi. 2005 Oct;26(10):751-6.

[The development and Assessment on the general quality of life intrument for Chinese people].

[Article in Chinese]

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Department of Epidemiology, Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.



To develop a general quality of life (QOL) instrument for Chinese in accordance with the Chinese culture and to assess its reliability, validity and sensitivity.


A 35-item QOL questionnaire(QOL-35) was developed with reference to the World Health Organization QOL questionnaire(WHO-100) and the 36-item medical outcomes study on short-form health status(SF-36). Thirty five items were divided into six domains (general, physical, independent, psychological, social, environment) and one item on QOL transition. The reliability of QOL-35 was assessed by a test-retest survey among 127 adults with an interval of 24-72 hours. The internal consistency and validity were evaluated by a survey on 135 adults from outpatients or general population, using QOL-35, WHO-100 and SF-36. The adaptability was assessed by application to 1356 community-based samples in Beijing.


(1)Test-retest reliability of QOL-35: weighted Kappa indexes for items were from 0.86 to 1.00. Intraclass correlation coefficients were from 0.68 to 0.94 for domains, and 0.94 for total score. (2) On internal consistency: Cronbach's Alphas were 0.93, 0.97 and 0.89 for QO1-35, WHO-100 and SF-36. (3)On construct validity. The accumulated proportions of variances of the preceding seven factors were 66.5%, 50.3% and 65.3% for QOL-35, WHO-100 and SF-36. (4) On criterion validity. Spearman correlation coefficients of total QOL score of QOL-35 with those of WHO-100 and SF-36 were 0.805 and 0.745. (5)The rates of chronic diseases were 53.1%, 33.1%, 26.4% and 25.1% from first to fourth quantile of the total QOL scores of QOL-35(P<0.05). (6)Cronbach's Alpha was from 0.68 to 0.93 in 135 subjects, and from 0.71 to 0.91 in 1356 individuals of natural population.


The QOL-35 instrument satisfied test-retest reliability and was highly correlated with WHO-100 and SF-36, having fewer items but better construction validity, better internal consistency, and better discrimination ability. We suggested that QOL-35 be used as a replicable tool to assess quality of life in the Chinese general population.

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