ArticleQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation2025
Valuation survey for SF-6Dv2 in Japan based on the international protocol.
Article in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Deriving a Korean SF-6Dv2 Value Set Using a Discrete Choice Experiment with Duration.PharmacoEconomics · 2026Article
- A cross-country comparison of the psychometric performance of SF-6Dv2 and EQ-5D-5L.The European journal of health economics : HEPAC : health economics in prevention and care · 2026Article
- Quality of life utility-Core 10 dimensions (QLU-C10D) scores based on cancer patients' health preferences are more sensitive than those based on general public's health preferences.The European journal of health economics : HEPAC : health economics in prevention and care · 2026Article
- Optimizing presentation formats for SF-6Dv2 health status valuation: a qualitative study using cognitive interviews.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025Article
- Mapping the EORTC QLQ-C30 and QLQ-LC13 to the SF-6D utility index in patients with lung cancer using machine learning and traditional regression methods.Health and quality of life outcomes · 2025Article
- Health utility scores of six common cancers in China measured by SF-6Dv2.Health and quality of life outcomes · 2025Article
- Assessing the reliability and responsiveness of the SF-6Dv2 and comparing its validity to the EQ-5D-5L among colorectal cancer patients in China.Frontiers in oncology · 2025Article
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Abstract
purposeThe SF-6D Classification System was recently updated (SF-6Dv2). We performed a valuation survey to construct a value set for the SF-6Dv2 in Japan.
methodsAn online discrete choice experiment (DCE) with duration was used to estimate a value set for the SF-6Dv2 for Japan based on public preferences. The target sample number was 3800. Respondents were asked to complete 15 choice tasks. A conditional logit model that estimates interactions between time and each dimension was used to develop the value set.
resultsThe collected sample included 3933 respondents for the DCE tasks. The results of all the unconstrained models showed some inconsistencies. In particular, inconsistencies in the two most severe levels of the role limitation (RL) and vitality (VT) dimensions were observed in all models. The number of inconsistencies was smallest in a core model (n = 3) and in a model for core and common health states (n = 2). The physical functioning (PF) and pain (PA) dimensions had the greatest influence on utility at the overall level across all models. RL, VT, and social functioning (SF) had smaller overall impacts on utility. The PF weights for the two most severe levels are much lower than those in the UK and Australia. The Japanese scores tended to be lower compared with the UK SF-6Dv2 scores.
conclusionWe obtained a value set for Japan (model 5). With the development of this value set, it is now possible to calculate quality-adjusted life years for economic evaluation in Japan when the SF-6Dv2 has been used.
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