期刊
MEDICAL DECISION MAKING
卷 24, 期 3, 页码 247-254出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0272989X04265477
关键词
health status; SF-12; EQ-5D
资金
- AHRQ HHS [R03 HS013770] Funding Source: Medline
Background. Preference scores for the Medical Outcomes Study(MOS) SF-12 would enable its use in cost-effectiveness analyses. Previous mopping studies of MOS instruments to preference-based instruments have not examined performance in national samples. Participants. 15,000 adults in the 2000 Medical Expenditure Panel Survey annual survey including the SF-12 and EQ-5D Index. Methods. Regression of the EQ-5D Index scores onto the physical and mental component summary scores of the SF-12, testing 2nd-4th degree polynomial and spline models, including and excluding sociodemographics. Results, A 2nd degree polynomial model explained 63% of the variance in EQ-5D scores, with robust internal and external validation. More complex models explained minimally additional variance. Compared with EQ-5D valuations, prediction models overestimated the lowest health states (6% of the poplulation). Conclusions. The mapped SF-12 yields usable preference-scaled scores, with some caution for the lowest health states.
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