Koyama, Toshihiro
Iinuma, Shunya
Yamamoto, Michio
Niimura, Takahiro
Osaki, Yuka
Nishimura, Sayoko
Harada, Ko
Zamami, Yoshito
Hagiya, Hideharu http://orcid.org/0000-0002-5086-1891
Funding for this research was provided by:
Japan Society for the Promotion of Science (KAKENHI Grant No. 22K10415)
Article History
Accepted: 26 November 2023
First Online: 22 December 2023
Declarations
:
: This work was supported by the Japan Society for the Promotion of Science (KAKENHI Grant No. 22K10415). The sponsors had no role in the study design; in the collection, analysis and interpretation of the data; in the writing of the manuscript; and in the decision to submit the article for publication. All authors had full access to all of the data (including statistical reports and tables) in the study and take responsibility for the integrity and accuracy of the data.
: Toshihiro Koyama, Shunya Iinuma, Michio Yamamoto, Takahiro Niimura, Yuka Osaki, Sayoko Nishimura, Ko Harada, Yoshito Zamami and Hideharu Hagiya have no conflicts of interest that are directly relevant to the content of this article.
: This study was approved by the Institutional Review Board of Okayama University Hospital (no. 2007-011) and performed following the Declaration of Helsinki. The requirement for informed consent was waived because of the retrospective nature and analysis of routinely collected data. Reporting of this study followed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) reporting guidelines.
: Not applicable.
: Not applicable.
: The datasets generated and analysed during the current study are available from the corresponding author upon reasonable request. The corresponding author has full access to all the study data and takes final responsibility for the decision to submit this work for publication.
: The ICD-10 codes used in the study are provided as ESM.
: TK conceived the study; TK, HH and SI designed the study and wrote the manuscript. TK, MY and SI performed the statistical analysis. TK, SI and TN performed the data processing. All authors interpreted the results and critiqued the manuscript. All authors gave final approval for publication of the manuscript.