Muramatsu, Yuriko https://orcid.org/0009-0004-5582-5576
Sato, Tosiya https://orcid.org/0000-0001-9830-013X
Sone, Hirohito https://orcid.org/0000-0003-1263-2817
Tanaka, Shiro https://orcid.org/0000-0001-6817-5235
Funding for this research was provided by:
Japan Agency for Medical Research and Development (JP21lk0201702)
Novo Nordisk Japan
Article History
Received: 2 December 2025
Accepted: 6 August 2026
First Online: 18 August 2026
Declarations
Ethics approval and consent to participate: This study was approved by Kyoto University Graduate School and Faculty of Medicine, Ethics Committee in 2024 (the approval number: R4550). This study was conducted using the data obtained in the Japan Diabetes Complications Study. The data used in our study had been made non-identifiable before this study. We consulted extensively with Kyoto University Graduate School and Faculty of Medicine, Ethics Committee who determined that our study did not need informed consent.
Consent for publication: Not applicable.
Competing interests: Hirohito Sone is receiving a joint research grant from Novo Nordisk Japan. Other authors declare that they have no competing interests.