About the Authors

Naomi Maeda

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Validation, Visualization, Writing – original draft

Affiliations Department of Nursing, Sapporo Medical University School of Health Sciences, Sapporo, Japan, Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan

Masayuki Koyama

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – review & editing

masa3yuki3@sapmed.ac.jp

Affiliations Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan

Shintaro Takatsuka

Roles Data curation, Formal analysis, Methodology, Resources, Software, Supervision, Validation

Affiliation Center of Medical Education, Sapporo Medical University School of Medicine, Sapporo, Japan

Keisuke Oyatani

Roles Conceptualization, Data curation, Formal analysis, Software, Visualization, Writing – review & editing

Affiliation Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo, Japan

Nobuaki Himuro

Roles Methodology, Resources, Software, Supervision, Writing – review & editing

Affiliation Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan

Tasuku Mariya

Roles Methodology, Supervision, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan

Yoshika Kuno

Roles Methodology, Supervision, Writing – review & editing

Affiliations Department of Nursing, Sapporo Medical University School of Health Sciences, Sapporo, Japan, Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan

Shiro Hinotsu

Roles Methodology, Resources, Validation, Writing – review & editing

Affiliation Biostatistics and Data Management, Sapporo Medical University School of Medicine, Sapporo, Japan

Tsuyoshi Saito

Roles Resources, Supervision, Validation, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan

Hirofumi Ohnishi

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing – review & editing

Affiliations Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan

Competing Interests

The authors have declared that no competing interests exist.