biostudies-literatureLiang YNational Natural Science FoundationsKey R & D plan of Shaanxi ProvinceKey R & D plan of Shaanxi Province75https://www.ebi.ac.uk/biostudies/studies/S-EPMC7079393biostudies-literatureUnknown18(1)BACKGROUND:Proxy respondent-someone who assists the intended respondent or responds on their behalf-are widely applied in the measurement of health-related quality of life (HRQL). However, proxies may not provide the same responses as the intended respondents, which may bias the findings. OBJECTIVES:To determine whether the use of proxies is related to socio-demographic characteristics of the intended respondent, and to assess the possible proxy response bias of Chinese version of EQ-5D-3 L in general population. METHODS:A cross-sectional study based on a provincially representative sample from 2013 National Health Service Survey (NHSS) in Shaanxi, China was performed. HRQL was measured by Chinese version of EQ-5D-3 L. Propensity score matching (PSM) was used to get matched pairs of self-rHealth and quality of life outcomesAssessing the proxy response bias of EQ-5D-3 L in general population: a study based on a large-scale representative household health survey using propensity score matching.PMC7079393815732522019SF-143815732508177354081703315Guo LChe TLiang YShang LZhang YTan ZZhang HXu YfalseAssessing the proxy response bias of EQ-5D-3 L in general population: a study based on a large-scale representative household health survey using propensity score matching.BACKGROUND:Proxy respondent-someone who assists the intended respondent or responds on their behalf-are widely applied in the measurement of health-related quality of life (HRQL). However, proxies may not provide the same responses as the intended respondents, which may bias the findings. OBJECTIVES:To determine whether the use of proxies is related to socio-demographic characteristics of the intended respondent, and to assess the possible proxy response bias of Chinese version of EQ-5D-3 L in general population. METHODS:A cross-sectional study based on a provincially representative sample from 2013 National Health Service Survey (NHSS) in Shaanxi, China was performed. HRQL was measured by Chinese version of EQ-5D-3 L. Propensity score matching (PSM) was used to get matched pairs of self-r2020-01-01T00:00:00Z2020 Mar2025-05-29T19:23:29.691Z2025-05-29T19:23:29.691ZS-EPMC70793933218848010.1186/s12955-020-01325-z