Factors related to prolonged on-scene time during ambulance transportation for critical emergency patients in a big city in Japan: a population-based observational study. Issue 1 (4th January 2016)

• Record Type: Journal Article
• Authors: Nagata, Isao; Abe, Toshikazu; Nakata, Yoshinori; Tamiya, Nanako
• Is Part Of: BMJ open. Volume 6:Issue 1(2016)
• Publication Date: 2016-01-04
• Subjects: ACCIDENT & EMERGENCY MEDICINE -- HEALTH SERVICES ADMINISTRATION & MANAGEMENT -- PUBLIC HEALTH; Medicine -- Research -- Periodicals; 610.72
• DOI: 10.1136/bmjopen-2015-009599
• Languages: English
• ISSNs: 2044-6055

Abstract

Abstract : Objectives: We aimed to investigate the factors related to prolonged on-scene times, which were defined as being over 30 min, during ambulance transportation for critical emergency patients in the context of a large Japanese city. Design: A population-based observational study. Setting: Kawasaki City, Japan's eighth largest city. Participants: The participants in this study were all critical patients (age ≥15 years) who were transported by ambulance between April 2010 and March 2013 (N=11 585). Outcome measures: On-scene time during ambulance transportation for critical emergency patients. Results: The median on-scene time for all patients was 17 min (IQR 13–23). There was a strong correlation between on-scene time and the number of phone calls to hospitals from emergency medical service (EMS) personnel (p<0.001). In multivariable logistic regression, the number of phone calls to hospitals from EMS personnel, intoxication, minor disease and geographical area were associated with on-scene times over 30 min. Age, gender, day of the week and time of the day were not associated with on-scene times over 30 min. Conclusions: To make on-scene time shorter, it is vital to redesign our emergency system and important to develop a system that accommodates critical patients with intoxication and minor disease, and furthermore to reduce the number of phone calls to hospitals from EMS personnel.