title: Chinese Version of the EQ-5D Preference Weights: Applicability in a Chinese General Population.
abstract: OBJECTIVE
  This study aimed to test the reliability, validity and sensitivity of Chinese version of the EQ-5D preference weights in Chinese general people, examine the differences between the China value set and the UK, Japan and Korea value sets, and provide methods for evaluating and comparing the EQ-5D value sets of different countries.
  
  
  METHODS
  A random sample of 2984 community residents (15 years or older) were interviewed using a questionnaire including the EQ-5D scale. Level of agreement, convergent validity, known-groups validity and sensitivity of the EQ-5D China, United Kingdom (UK), Japan and Korea value sets were determined.
  
  
  RESULTS
  The mean EQ-5D index scores were significantly (P<0.05) different among the UK (0.964), Japan (0.981), Korea (0.987), and China (0.985) weights. High level of agreement (intraclass correlations coefficients > 0.75) and convergent validity (Pearson's correlation coefficients > 0.95) were found between each paired schemes. The EQ-5D index scores discriminated equally well for the four versions between levels of 10 known-groups (P< 0.05). The effect size and the relative efficiency statistics showed that the China weights had better sensitivity.
  
  
  CONCLUSIONS
  The China EQ-5D preference weights show equivalent psychometric properties with those from the UK, Japan and Korea weights while slightly more sensitive to known group differences than those from the Japan and Korea weights. Considering both psychometric and sociocultural issues, the China scheme should be a priority as an EQ-5D based measure of the health related quality of life in Chinese general population.
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.|School of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi Province, China.
authors.forename: Chunmei
authors.initials: C
authors.lastname: Wu
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Gong
authors.affiliation: Xixiang Management Center of Community Health Service, Shenzhen, Guangdong Province, China.
authors.forename: Jiang
authors.initials: J
authors.lastname: Wu
authors.affiliation: Xixiang Management Center of Community Health Service, Shenzhen, Guangdong Province, China.
authors.forename: Shengchao
authors.initials: S
authors.lastname: Zhang
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Xiaoxv
authors.initials: X
authors.lastname: Yin
authors.affiliation: Ningbo College of Health Sciences, Ningbo, Zhejiang Province, China.
authors.forename: Xiaoxin
authors.initials: X
authors.lastname: Dong
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Wenzhen
authors.initials: W
authors.lastname: Li
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Shiyi
authors.initials: S
authors.lastname: Cao
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Naomie
authors.initials: N
authors.lastname: Mkandawire
authors.affiliation: School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Zuxun
authors.initials: Z
authors.lastname: Lu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D044466:Asian People; D001835:Body Weight / Q000502:physiology*; D002681:China; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D007564:Japan; D008297:Male; D008875:Middle Aged; D056910:Republic of Korea; D011795:Surveys and Questionnaires; D006113:United Kingdom; D055815:Young Adult