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カワグチ ケンジロウ
KAWAGUCHI Kenjirou
河口 謙二郎 所属 医学部 医学科 職種 助教 |
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| 論文種別 | 原著 |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | The Monetary Value of Health and Health Behaviors in Japan: A Well-being Valuation Approach. |
| 掲載誌名 | 正式名：Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research 略 称：Value Health ISSNコード：15244733/10983015 |
| 掲載区分 | 国外 |
| 巻・号・頁 | pp.0-0 |
| 著者・共著者 | Kenjiro Kawaguchi†*, Hiroki Takeuchi, Atsushi Nakagomi, Kazushige Ide, Katsunori Kondo |
| 発行年月 | 2026/06 |
| 概要 | OBJECTIVES:To estimate monetary values of health and health behavior outcomes and 1 well-being-adjusted life-year (WELLBY) in Japan using the well-being valuation approach for cross-sector policy evaluation and social return on investment analysis.METHODS:We analyzed data from a nationwide internet-based survey conducted between February and March 2025, including 14,736 adults aged 20-79 years. One WELLBY was defined as a 1-point change in life satisfaction on a 0-10 scale sustained for 1 year. Using life satisfaction as the primary well-being measure, we estimated the income-subjective well-being gradient using two-stage least squares with parental education as an instrumental variable. We examined associations between subjective well-being and 19 outcomes across mental health, social health, health behaviors, health literacy, and women's health. We calculated compensating surplus values in Japanese yen anchored to the median equivalized household income.RESULTS:The instrumental variables were strong, and the coefficient of log income on life satisfaction was 2.27. Of the 19 outcomes examined, 18 were significantly associated with subjective well-being (p < 0.001); cognitive restraint (TFEQ-CR) was the sole non-significant outcome. Monetary values per 1-point increase included 120,000 JPY for the Lubben Social Network Scale-6 and -226,000 JPY for the Patient Health Questionnaire-9. A 1-point increase in loneliness corresponded to a welfare loss of -513,000 JPY. The estimated value of 1 WELLBY was approximately 1.51 million JPY (∼10,000 USD).CONCLUSIONS:This study provides Japan's first yen-denominated set of monetary values for health-related outcomes and WELLBY, enabling cost-benefit analysis and social return on investment across sectors. |
| DOI | 10.1016/j.jval.2026.05.008 |
| PMID | 42285413 |