About the Authors

Ken-ei Sada

Contributed equally to this work with: Ken-ei Sada, Ryohei Yamamoto, Akihiko Yano

Roles Conceptualization, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing

sadak@kochi-u.ac.jp

Affiliations Department of Clinical Epidemiology, Kochi Medical School, Kochi University, Nankoku, Japan, Department of Internal Medicine, Kochi Prefectural Hata-Kenmin Hospital, Sukumo, Japan, Department of General Medicine, Kochi Health Sciences Center, Kochi, Japan

Ryohei Yamamoto

Contributed equally to this work with: Ken-ei Sada, Ryohei Yamamoto, Akihiko Yano

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing – original draft, Writing – review & editing

Affiliation Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan

Akihiko Yano

Contributed equally to this work with: Ken-ei Sada, Ryohei Yamamoto, Akihiko Yano

Roles Conceptualization, Data curation, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Department of General Medicine, Kochi Health Sciences Center, Kochi, Japan

Atsushi Miyauchi

Roles Data curation, Writing – review & editing

Affiliation Department of Internal Medicine, Kochi Prefectural Hata-Kenmin Hospital, Sukumo, Japan

Masafumi Kawamura

Roles Data curation, Supervision, Writing – review & editing

Affiliation Department of Internal Medicine, Kochi Prefectural Hata-Kenmin Hospital, Sukumo, Japan

Hideki Ito

Roles Data curation, Supervision, Writing – review & editing

Affiliation Department of General Medicine, Kochi Health Sciences Center, Kochi, Japan

Competing Interests

The authors have declared that no competing interests exist.