1. Department of Preventive Services, School of Public Health Kyoto University Kyoto Japan
2. Department of Primary Care and Emergency Medicine, Graduate School of Medicine Kyoto University Kyoto Japan
3. Division of Biomedical Statistics, Department of Integrated Medicine, Graduate School of Medicine Osaka University Suita Japan
4. Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine Osaka University Osaka Japan
5. Critical Care and Trauma Center Osaka General Medical Center Osaka Japan
6. Department of Traumatology and Acute Critical Medicine Osaka University Graduate School of Medicine Suita Japan
7. Emergency and Critical Care Medical Center Osaka Police Hospital Osaka Japan
8. Department of Emergency and Critical Care Medicine Takii Hospital, Kansai Medical University Moriguchi Japan
9. Department of Emergency Medicine Tane General Hospital Osaka Japan
10. Department of Critical Care Medicine Osaka City University Osaka Japan
11. Department of Emergency and Critical Care Medicine Kindai University School of Medicine Osaka‐Sayama Japan
12. Osaka Mishima Emergency Critical Care Center Takatsuki Japan
13. Osaka Prefectural Nakakawachi Medical Center of Acute Medicine Higashi‐Osaka Japan
14. Senshu Trauma and Critical Care Center Osaka Japan
15. Senri Critical Care Medical Center Saiseikai Senri Hospital Suita Japan
16. Traumatology and Critical Care Medical Center National Hospital Organization Osaka National Hospital Osaka Japan
17. Emergency and Critical Care Medical Center Osaka City General Hospital Osaka Japan
18. Department of Pediatrics Osaka Red Cross Hospital Osaka Japan
19. Emergency and Critical Care Medical Center Kishiwada Tokushukai Hospital Osaka Japan
20. Department of Emergency and Critical Care Medicine Kansai Medical University Hirakata Osaka Japan
21. Department of Emergency Medicine Kyoto Prefectural University of Medicine Kyoto Japan
22. Public Health, Department of Social and Environmental Medicine Osaka University Graduate School of Medicine Osaka Japan