New transit station in Japan significantly reduced cumulative health expenditures
Time series data and causal impact algorithm reveal the effectiveness of a new transit station over a four-year period
2024-05-14
(Press-News.org)
The declining population in Osaka is related to an aging society that is driving up health expenditures. Dr. Haruka Kato, a junior associate professor at Osaka Metropolitan University, teamed up with the Future Co-creation Laboratory at Japan System Techniques Co., Ltd. to conduct natural experiments on how a new train station might impact healthcare expenditures.
JR-Sojiji Station opened in March 2018 in a suburban city on the West Japan Railway line connecting Osaka and Kyoto. The researchers used a causal impact algorithm to analyze the medical expenditure data gathered from the time series medical dataset REZULT provided by Japan System Techniques.
Their results indicate that opening this mass transit station was significantly associated with a decrease in average healthcare expenditures per capita by approximately 99,257.31 Japanese yen (USD 929.99) over four years, with US dollar figures based on March 2018 exchange rates. In addition, the 95% confidence interval indicated the four-year decreasing expenditure of JPY 136,194.37 ($1276.06) to JPY 62,119.02 ($582.02). This study’s findings are consistent with previous studies suggesting that increased access to transit might increase physical activity among transit users. The results provided evidence for the effectiveness of opening a mass transit station from the viewpoint of health expenditures.
“From the perspective of evidence-based policymaking, there is a need to assess the social impact of urban designs,” said Dr. Kato. “Our findings are an important achievement because they enable us to assess this impact from the perspective of health care expenditures, as in the case of JR-Sojiji Station.”
The findings were published in Journal of Transport & Health.
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About OMU
Established in Osaka as one of the largest public universities in Japan, Osaka Metropolitan University is committed to shaping the future of society through the “Convergence of Knowledge” and the promotion of world-class research. For more research news, visit https://www.omu.ac.jp/en/ and follow us on social media: X, Facebook, Instagram, LinkedIn.
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[Press-News.org] New transit station in Japan significantly reduced cumulative health expenditures
Time series data and causal impact algorithm reveal the effectiveness of a new transit station over a four-year period
