Annals of the rheumatic diseases
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Comparative Study
Comparison of utility measures and their relationship with other health status measures in 1041 patients with rheumatoid arthritis.
The aim of this study was to compare three health utility instruments (15D, EQ-5D, SF-6D) and a rating scale for health (EQ-Visual Analogue Scale (VAS)) and to investigate their relationship to clinical parameters in patients with rheumatoid arthritis (RA). ⋯ Diverging scores were observed across utility instruments, especially in patients with high HAQ scores. The choice of utility instrument may have an impact on the results of cost-utility analyses, with large hypothetical differences in price per quality-adjusted life year.