Benjamin M Craig1, A Simon Pickard, Kim Rand-Hendriksen. 1. Health Outcomes and Behavior, Moffitt Cancer Center, University of South Florida, 12902 Magnolia Drive, MRC-CANCONT, Tampa, FL, 33612-9416, USA, benjamin.craig@moffitt.org.
Abstract
PURPOSE: The aim of this study was to test whether the ordering of item labels in EQ-5D instruments disagrees with the preferences of US adults. METHODS: A preference inversion occurs when "worse" health along a scale or score is preferred. As a sub-study of the 2013 United States Measurement and Valuation of Health Study, we tested for 33 EQ-5D preference inversions using paired comparisons with unique samples of 50 or more US adults, aged 18 or older. Specifically, we tested whether health preferences contradicted ordering of EQ-5D labels. RESULTS: The EQ-5D-3L and EQ-5D-Y item labels had no significant preference inversions. The EQ-5D-5L version had preference inversions between Levels 4 and 5. For example, 30 out of 59 respondents (51 %) preferred being "extremely" over "severely anxious or depressed," contrary to the ordering of labels for that item. CONCLUSIONS: Preference inversions between Levels 4 and 5 on the EQ-5D-5L were tested and confirmed; therefore, valuation studies may find that Levels 4 and 5 have the same value. To mitigate such inversions, labels could be revised or a 4-level version could be considered.
PURPOSE: The aim of this study was to test whether the ordering of item labels in EQ-5D instruments disagrees with the preferences of US adults. METHODS: A preference inversion occurs when "worse" health along a scale or score is preferred. As a sub-study of the 2013 United States Measurement and Valuation of Health Study, we tested for 33 EQ-5D preference inversions using paired comparisons with unique samples of 50 or more US adults, aged 18 or older. Specifically, we tested whether health preferences contradicted ordering of EQ-5D labels. RESULTS: The EQ-5D-3L and EQ-5D-Y item labels had no significant preference inversions. The EQ-5D-5L version had preference inversions between Levels 4 and 5. For example, 30 out of 59 respondents (51 %) preferred being "extremely" over "severely anxious or depressed," contrary to the ordering of labels for that item. CONCLUSIONS: Preference inversions between Levels 4 and 5 on the EQ-5D-5L were tested and confirmed; therefore, valuation studies may find that Levels 4 and 5 have the same value. To mitigate such inversions, labels could be revised or a 4-level version could be considered.
Authors: David Feeny; William Furlong; George W Torrance; Charles H Goldsmith; Zenglong Zhu; Sonja DePauw; Margaret Denton; Michael Boyle Journal: Med Care Date: 2002-02 Impact factor: 2.983
Authors: A Simon Pickard; Thomas Kohlmann; Mathieu F Janssen; Gouke Bonsel; Sarah Rosenbloom; David Cella Journal: Med Care Date: 2007-09 Impact factor: 2.983