The classification systems of the EQ-5D, the HUI II and the SF-6D: what do they have in common?
- 1 September 2009
- journal article
- Published by Springer Science and Business Media LLC in Quality of Life Research
- Vol. 18 (9), 1249-1261
- https://doi.org/10.1007/s11136-009-9525-8
Abstract
EQ-5D, HUI II and SF-6D often produce very different valuations for the same health state. This paper aims at clarifying to what extent this might be caused by differences between the multi-attribute classification systems belonging to these instruments. Subjects were 264 patients of rehabilitation clinics in Mecklenburg-Western Pomerania (44.3% female; mean age 49.1) who completed the EQ-5D, the HUI II and the SF-36 (the basis of the SF-6D). After scaling with principal component analyses for categorical data, each attribute of each classification system was regressed on the classification systems of the other two instruments, and all attributes together were subjected to ordinary principal component analysis with varimax rotation. Adjusted multiple R 2 for regression analyses ranged from 0.01 to 0.57. The HUI II attribute ‘sensation’ and the SF-6D attribute ‘role limitation’ are virtually unrelated to the remainder. All other attributes of all three instruments can be predicted by each other. EQ-5D and HUI II focus distinctly more on physical functioning than SF-6D. Although all three classification systems have a lot in common, they differ so much that EQ-5D, HUI II and SF-6D would produce different valuations even if these valuations were determined according to the same principle.Keywords
This publication has 60 references indexed in Scilit:
- Examining the hierarchical factor structure of the SF-36 Taiwan version by exploratory and confirmatory factor analysisJournal of Evaluation in Clinical Practice, 2007
- A comparison of the EQ‐5D and SF‐6D across seven patient groupsHealth Economics, 2004
- Psychometric and Utility-Based Measures of Health Status of Asthmatic Patients with Different Disease Control LevelPharmacoEconomics, 2004
- Chinese SF-36 Health Survey: translation, cultural adaptation, validation, and normalisationJournal of Epidemiology and Community Health, 2003
- A comparative review of four preference-weighted measures of health-related quality of lifeJournal of Clinical Epidemiology, 2003
- The Equivalence of SF-36 Summary Health Scores Estimated Using Standard and Country-Specific Algorithms in 10 Countries: Results from the IQOLA ProjectJournal of Clinical Epidemiology, 1998
- Validation of the 36-Item Short-Form Health Survey (Hebrew Version) in the Adult Population of IsraelMedical Care, 1998
- Multi-Attribute Health Status Classification SystemsPharmacoEconomics, 1995
- The MOS 36-Item Short-Form Health Survey (SF-36)Medical Care, 1993
- The MOS 36-ltem Short-Form Health Survey (SF-36)Medical Care, 1992