Developing a New Region-Specific Preference-Based Measure in East and Southeast Asia

Shiroiwa, Takeru; Murata, Tatsunori; Ahn, Jeonghoon; Li, Xue; Nakamura, Ryota; Teerawattananon, Yot; Zhao, Kuaile; Shafie, Asrul Akmal; Valverde, Haidee; Lam, Hilton Y.; Ng, Kwong; Nadjib, Mardiati; Pwu, Raoh‐Fang; Nugraha, Ryan Rachmad; Chen, Yong-Chen; Fukuda, Takashi

doi:10.1016/j.vhri.2022.07.002

Cited by 4 publications

(1 citation statement)

References 23 publications

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“…However, the score measured using existing PBMs based on the Western concept may not re ect Asians' true preference, thereby rendering the scores of PBMs less meaningful. Considering this situation, we developed a new PBM, Asia preference-based measure-7 dimensions (AP-7D) [10] (appendix 1), based on an interview survey and qualitative analysis in nine Asian countries (i.e., Indonesia, Japan, Korea, mainland China, Malaysia, the Philippines, Singapore, Taiwan, and Thailand).…”

Section: Introductionmentioning

confidence: 99%

Reliability and construct validity of the new region-specific PBM AP-7D developed in East and Southeast Asia

Shiroiwa¹,

Murata²,

Fukuda³

2022

Preprint

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Background: The AP-7D is a preference-based measure newly developed in East and Southeast Asia. This study aimed to show the psychometric properties of the new instrument. Methods: Surveys were conducted in Japan, Korea, China, Thailand, and Singapore. In each country, 500 respondents were selected by quota sampling and stratified by sex and age. We conducted a face-to-face survey in Japan and a web-based survey in the other countries at two time points. The AP-7D and the EQ-5D-5L were collected from all countries, and the SF-6D was collected only in Japan. The reliability of the instruments was confirmed by comparing responses based on self-report test-retest methods. Regarding construct validity, we compared responses to the AP-7D with those of the EQ-5D-5L and the SF-6D based on predetermined hypotheses. Results: The percentage of agreement between the two surveys was 73.9% (pain/discomfort), 71.2% (anxiety/depression), 68.6% (energy), 89.6% (mobility), 82.1% (work/school), 84.3% (social relations), and 86.4% (burden to others) in five countries. These values were comparable with those of the EQ-5D-5L. The kappa coefficients of the AP-7D items were similar to those of the EQ-5D-5L. According to the correlation matrix between the AP-7D and EQ-5D-5L, correlation exceeded 0.5 in the following items: 0.69 between “mental health” (AP-7D) and “anxiety/depression” (EQ-5D-5L), 0.54 between both “pain/discomfort,” 0.51 between “energy” (AP-7D) and “anxiety/depression” (EQ-5D-5L), and 0.50 between both “mobility.” Conclusion: The survey results showed good reliability and construct validity of the AP-7D. Basic psychometric properties of the new instrument were confirmed.

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Section: Introductionmentioning

confidence: 99%

Reliability and construct validity of the new region-specific PBM AP-7D developed in East and Southeast Asia

Shiroiwa¹,

Murata²,

Fukuda³

2022

Preprint

Self Cite

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Fifteen Lessons from Fifteen Years of the Health Intervention and Technology Assessment Program in Thailand

Teerawattananon,

Vishwanath Dabak,

Culyer

et al. 2023

Health Systems & Reform

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Comparison of four value sets derived using different TTO and DCE approaches: application to the new region-specific PBM, AP-7D

Shiroiwa,

Murata,

Morii

et al. 2024

Health Qual Life Outcomes

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Background AP-7D is a newly developed preference-based measure (PBM) in East and Southeast Asia. However, no value set has been established yet. Comparison of the characteristics of value sets obtained by different methods is necessary to consider the most appropriate methodology for valuation survey of AP-7D. Method We surveyed the general population’s preference of AP-7D health states by four valuation methods (a) composite time trade-off (cTTO); (b) simple discrete choice experiment (DCE); (c) DCE with duration; and (d) ternary DCE. In Japan, we collected approximately 1,000 samples for cTTO tasks through a face-to-face survey and 2,500 samples for each of the three DCE tasks. Respondents were selected through quota sampling based on the sex and age. The cTTO data were analyzed using a linear mixed and tobit model; the DCE data were analyzed using a simple and panel conditional logit model. Where the results of the analysis showed inconsistencies, a constrained model was used. Results Since all the unconstrained models, except simple DCE, showed one or more inconsistencies, the constrained model was used for the analyses. The minimum values for the models were as follows: TTO model, -0.101; simple DCE model, -0.106; DCE with duration model, -0.706; ternary DCE model, -0.306. The score for the DCE with the duration model was much lower than that for the other models. Although the value sets for AP-7D differed among the four valuation methods, the ternary DCE model showed intermediate characteristics between those of the cTTO and DCE with duration models. As compared with to EQ-5D-5L, the distributions of all the scores on the Japanese AP-7D moved to the left. Although “Energy” was one of the domains with the least influence on the AP-7D score in all four models, “Burden to others” had the largest impact on the preferences. Conclusion We constructed four value sets using different TTO and DCE methods. Our findings are expected not only to contribute to the development of AP-7D, but also other preference-based measures.

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Developing a New Region-Specific Preference-Based Measure in East and Southeast Asia

Cited by 4 publications

References 23 publications

Reliability and construct validity of the new region-specific PBM AP-7D developed in East and Southeast Asia

Reliability and construct validity of the new region-specific PBM AP-7D developed in East and Southeast Asia

Fifteen Lessons from Fifteen Years of the Health Intervention and Technology Assessment Program in Thailand

Comparison of four value sets derived using different TTO and DCE approaches: application to the new region-specific PBM, AP-7D

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