Funding for this research was provided by:
Japan Society for the Promotion of Science (20K10349)
Article History
Received: 18 November 2021
Accepted: 20 February 2022
First Online: 9 March 2022
Declarations
:
: This study was approved by the Research Ethics Safety Committee at Oita University of Nursing and Health Sciences before implementation (no. 18–69). Because a local government database that is saved anonymously was used, the analysis was conducted in such a way that individuals were not identified, and personal information was protected. Based on the retrospective nature of this study, consent was not required from the participants.
: Not applicable.
: The authors declare that they have no competing interests in relation to this manuscript.