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Article History

Received: 13 January 2023

Accepted: 9 August 2023

First Online: 29 August 2023

Declarations

:

: The authors declare no competing interests.

: The study was approved by the Ethics Committee of the Dia Foundation for Research on Ageing Societies (approval no.: A30001). We signed a joint research agreement in accordance with the “Regulation concerning the protection of personal information” and the “Information security policy” of the municipality. We also prepared a record of the provision of anonymized personal information in accordance with the ethical guidelines for medical and health research involving human subjects (December 22, 2014; partially revised February 28, 2017), and received permission to use the data for the study from the municipality. This guideline stipulated the protection of patient anonymity and stated that the requirement for informed consent was waived when using anonymized personal information and the aforementioned procedures. The waiver of informed consent was approved by the Ethics Committee of the Dia Foundation for Research on Ageing Societies. In the process of providing these data, the municipality ensured compliance with the “Regulation concerning the protection of personal information” and the “Information security policy.” The data used in this study could be accessed upon request at Dia Foundation for Research on Ageing Society [website: ExternalRef removed email: info@dia.or.jp / contact person: Tomoaki Ishibashi].

: Not applicable.