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Comparison between EQ-5D and SF-6D Utility in Rural Residents of Jiangsu Province, China

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  • Hui Jin
  • Bei Wang
  • Qian Gao
  • Jianqian Chao
  • Siyuan Wang
  • Lin Tian
  • Pei Liu

Abstract

Background: The SF-6D and EQ-5D are widely used generic index measures as health-related quality of life. We assessed within-subject agreement between SF-6D and EQ-5D utilities with different preference weights, and their validities in measuring Chinese rural residents, before and after standardization scores. Methodology/Principal Findings: Rural residents over 18 years old were interviewed using EQ-5D and SF-6D in Jiangsu Province, China. EQ-5D utility-scoring algorithms were used from three conversion tables from the United Kingdom, Japan, and the United States. Validities, Sensitivity and agreement between instruments were computed and compared. Factors affecting utility difference were explored with multiple liner regression models. Scores with standardization intervals of 0–1 in the two instruments were analyzed by the use of the above methods again. In 929 respondents, relative efficiency statistic and receiver operating characteristic curves analysis showed SF-6D to be the more efficient, followed by the EQ-5D model in Japan weights. Bland–Altman plot analysis showed paired SF-6D/EQ-5D in UK weights had better agreement. Though some risk factors were found, multiple liner regression demonstrated most coefficients were weaker than 0.2, and all R2 values were less than 0.06. Standardization did not significantly influence these results except scores' value. Conclusions/Significance: SF-6D and next EQ-5D in Japan weights could be used for Chinese rural residents. Further research with larger sample size of population is needed to establish and determine the feasibility of standardization score.

Suggested Citation

  • Hui Jin & Bei Wang & Qian Gao & Jianqian Chao & Siyuan Wang & Lin Tian & Pei Liu, 2012. "Comparison between EQ-5D and SF-6D Utility in Rural Residents of Jiangsu Province, China," PLOS ONE, Public Library of Science, vol. 7(7), pages 1-5, July.
    • Handle: RePEc:plo:pone00:0041550
    DOI: 10.1371/journal.pone.0041550
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    References listed on IDEAS

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    1. Zhongliang Zhou & Yu Fang & Zhiying Zhou & Dan Li & Dan Wang & Yanli Li & Li Lu & Jianmin Gao & Gang Chen, 2017. "Assessing Income-Related Health Inequality and Horizontal Inequity in China," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 132(1), pages 241-256, May.
    2. Jing Wu & Yuerong Han & Judy Xu & Yang Lu & Hongliang Cong & Junyi Zheng & He Sun, 2014. "Chronic Stable Angina Is Associated with Lower Health-Related Quality of Life: Evidence from Chinese Patients," PLOS ONE, Public Library of Science, vol. 9(5), pages 1-9, May.
    3. Chunmei Wu & Yanhong Gong & Jiang Wu & Shengchao Zhang & Xiaoxv Yin & Xiaoxin Dong & Wenzhen Li & Shiyi Cao & Naomie Mkandawire & Zuxun Lu, 2016. "Chinese Version of the EQ-5D Preference Weights: Applicability in a Chinese General Population," PLOS ONE, Public Library of Science, vol. 11(10), pages 1-16, October.

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