News Release Dated April 24, 2024
Company: Japan System Techniques Co., Ltd.
Representative: Takeaki Hirabayashi, President and CEO
Stock code: 4323, Tokyo Stock Exchange, Prime Market
Contact: Taku Hirabayashi, Director and Senior Officer
Tel: +81-6-4560-1000

Results of Joint Research with Osaka Metropolitan University
Using the REZULT Medical Big Data Platform
Healthcare Expenditure Reduction Due to a New Railway Station
The Future Co-Creation Laboratory of Japan System Techniques Co., Ltd. (JAST) and Haruka Kato, a seniorlecturer at the School of Human Life and Ecology of Osaka Metropolitan University, are conducting a joint
research program concerning healthcare that utilizes medical big data. As part of this program, JAST and Mr.
Kato have announced the results of an analysis using JAST’s REZULT medical big data platform to study
how a new railway station lowers expenditures for healthcare. The details are as per attached.
This matter will have only a negligible effect on JAST’s results of operations. An announcement will be madepromptly if there is any additional information that should be disclosed.

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NEWS RELEASE

April 24, 2024
Japan System Techniques Co., Ltd.

Results of Joint Research with Osaka Metropolitan University
Using the REZULT Medical Big Data Platform
Healthcare Expenditure Reduction Due to a New Railway Station
The Future Co-Creation Laboratory of Japan System Techniques Co., Ltd. (JAST) and Haruka Kato, a senior lecturer at theSchool of Human Life and Ecology of Osaka Metropolitan University, are conducting a joint research program concerning
healthcare that utilizes medical big data. As part of this program, JAST and Mr. Kato have announced the results of an analysis
using JAST’s REZULT medical big data platform to study how a new railway station lowers expenditures for healthcare.
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The Joint Research Program

For this analysis, Sojiji Station was used as the example for a study of how a new station can lower healthcare expenditures.
Sojiji Station is on the JR Line in the Osaka prefecture city of Ibaraki. By using the REZULT medical big data platform,analysis resulted in a statistically significant decline of 99,257 yen (95% confidence interval (see note 1) of 62,119 yen to136,194 yen) in cumulative healthcare expenditures of residents living near Sojiji Station during the first four years after thestation opened.

Osaka Metropolitan University performs the role of an urban think tank that has a broad
range of knowledge concerning large cities. By using the evidence based policy-making(EBPM) methodology, research teams at the university are developing methods forassessing the social impact of community creation projects.
This research program took place in Osaka, where the population is declining as Japan’spopulation ages and the number of children decreases. Our work resulted in a very
important method for using healthcare expenditures to evaluate the social impact ofcommunity creation projects.
Haruka Kato, Senior Lecturer
The results of this research program were reported in the online version of Journal of Transport & Health dated April 9, 2024.
(https://doi.org/10.1016/j.jth.2024.101808)

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NEWS RELEASE◼

Background of the Research ProjectAs Japan’s population declines, the country is implementing the Compact Plus Network policy for the realignment of large
cities including their public transportation networks centered on railway stations. New stations can have many effects, suchas an increase in real estate prices. Based on the population approach (see note 2), adding stations has been shown tosignificantly alter the activities of nearby residents. However, it was not known until now if new stations are able to holddown healthcare expenditures of these residents, which has the potential of helping slow the current rapid growth of these
expenditures in Japan.

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Upcoming Activities

JAST and the Osaka Metropolitan University Graduate School of Human Life and Ecology have an agreement for cooperationin several areas. Activities are under way to develop new preventive healthcare programs for extending healthy life
expectancy and to determine ways to improve the quality of life of people of all ages. The objective is to make a contribution
to the entire healthcare sector by using research projects conducted with local governments, companies and other partners.
The results of this research program will be used for joint programs by companies and academic institutions for thedevelopment of methods to assess the social impact railway stations and other components of neighborhood creation activities
that are part of smart city projects.
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REZULT Medical Big Data Platform

Use this URL for more information.
https://www.jastlab.jast.jp/rezult_data/◼

Profile of Haruka Kato

October 2023-Present
April 2022-September 2023
April 2020-March 2022
April 2019-March 2020
April 2016-March 2019◼

Senior Lecturer of the Graduate School of Human Life and Ecology at Osaka
Metropolitan University
Assistant Professor of the Graduate School of Human Life and Ecology at Osaka
Metropolitan University
Assistant Professor of the Graduate School of Human Life and Ecology at Osaka CityUniversity
Contract Assistant of Mukogawa Institute of Esthetics in Everyday-Life at Mukogawa
Women’s University
Ph.D., Kyoto University Graduate School of Design Cooperative Program (Kyoto
University Graduate School of Engineering)

The Future Co-Creation Laboratory of JASTThe Future Co-Creation Laboratory of JAST is engaged in the co-creation digital transformation (DX) by using partnerships
with companies, academic institutions and local governments. Activities involve the development of new products and services
by using JAST’s REZULT medical big data platform and working closely with partners and customers. Main objectives are
the growth of data held by JAST and its corporate value and the creation of more methods for solving the problems of customer s.
Operations of The Future Co-Creation Laboratory also contribute to accomplishing Sustainable Development Goals number
three, good health and well-being, and nine, industry, innovation and infrastructure. These activities include the use of medical
big data to enable people to stay healthy and the use of alliances with the academic sector for joint research and the developmentof products.

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NEWS RELEASE*1 95% confidence interval
Confidence interval is an indicator commonly used in statistics, showing the mean value as a line (interval) and used whenestimating an average for a large volume of data. A 95% confidence interval is the range that can be expected to include thetrue figure 95 out of 100 times if the testing process is repeated many times.
*2 Population Approach
Population approach is a concept that is frequently used in the fields of public health and preventive medicine. The aim of thisapproach is to determine ways to improve the health of a large group or community rather than for individuals one by one.

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Inquiries

Japan System Techniques Co., Ltd.
The Future Co-Creation Laboratory
Contact: https://www.jastlab.jast.jp/contact/
Website of The Future Co-Creation Laboratory: https://www.jastlab.jast.jp/3