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Article History

Accepted: 10 December 2023

First Online: 13 January 2024

Declarations

:

: National Institute of Public Health.

: The authors have no competing interests to declare relevant to the content of this article.

: This study was conducted in accordance with the principles of the Declaration of Helsinki. This study was approved by the Ethics Committee of the National Institute of Public Health (NIPH-IBRA#12338).

: Informed consent was obtained from all individual participants included in the study.

: Respondents signed informed consent regarding publishing their anonymous data.

: The datasets generated and/or analyzed during the current study are not publicly available due to the lack of consent from participants but are available from the corresponding author upon reasonable request.

: Not applicable.

: All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Takeru Shiroiwa. The first draft of the manuscript was written by Takeru Shiroiwa, and all authors commented on previous versions of the manuscript. All the authors have read and approved the final version of the manuscript.