@article{ref1,
title="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",
journal="BMJ open",
year="2016",
author="Nagata, Isao and Abe, Toshikazu and Nakata, Yoshinori and Tamiya, Nanako",
volume="6",
number="1",
pages="e009599-e009599",
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. <br><br>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. <br><br>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. <br><br>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.<p /> <p>Language: en</p>",
language="en",
issn="2044-6055",
doi="10.1136/bmjopen-2015-009599",
url="http://dx.doi.org/10.1136/bmjopen-2015-009599"
}