Igarashi Yutaka, Yabuki Mio, Norii Tatsuya, Yokobori Shoji, Yokota Hiroyuki
Department of Emergency and Critical Care Medicine Nippon Medical School Tokyo Japan.
Faculty of Medicine Nippon Medical School Tokyo Japan.
Acute Med Surg. 2021 Nov 19;8(1):e709. doi: 10.1002/ams2.709. eCollection 2021 Jan-Dec.
The coronavirus disease 2019 (COVID-19) pandemic has imposed a heavy burden on emergency medical services (EMS) systems. Therefore, we quantitatively analyzed impacts of COVID-19 on the EMS system in Tokyo.
In this retrospective observational study, we used publicly available data, including the daily number of newly diagnosed patients with COVID-19, the weekly number of transport difficulties, and the field activity time, from March 2, 2020, to January 25, 2021. Data for the same period in the previous year were used as controls.
The total number of EMS calls decreased by 12.7% in 2020 compared with that in 2019. The number of daily transport difficulties significantly increased in 2020 compared with that in 2019 (89 [72-120] vs 57 [49-63]; < 0.001). Additionally, the field activity time significantly increased in 2020 compared with that in 2019 (22.7 [22.3-23.8] min vs 20.7 [20.6-21.2] min; < 0.001). Furthermore, the daily number of new patients with COVID-19 was positively correlated with the number of transport difficulties ( = 0.76) and the field activity time on the scene ( = 0.74). With an increase in the number of people infected with COVID-19 by 1,000, the number of daily transport difficulties increased by 86.4. Per 1,000 infected patients per day, the field activity time increased by 3.48 min.
This study revealed that the increase in the number of patients with COVID-19 indirectly affected the EMS system in Tokyo.
2019年冠状病毒病（COVID-19）大流行给紧急医疗服务（EMS）系统带来了沉重负担。因此，我们定量分析了COVID-19对东京EMS系统的影响。
在这项回顾性观察研究中，我们使用了公开可用的数据，包括2020年3月2日至2021年1月25日期间COVID-19新诊断患者的每日数量、每周运输困难数量和现场活动时间。将上一年同期的数据用作对照。
与2019年相比，2020年EMS呼叫总数下降了12.7%。与2019年相比，2020年每日运输困难数量显著增加（89[72-120]对57[49-63]；<0.001）。此外，与2019年相比，2020年现场活动时间显著增加（22.7[22.3-23.8]分钟对20.7[20.6-21.2]分钟；<0.001）。此外，COVID-19新患者的每日数量与运输困难数量（=0.76）和现场活动时间（=0.74）呈正相关。COVID-19感染人数每增加1000人，每日运输困难数量增加86.4。每天每1000名感染患者，现场活动时间增加3.48分钟。
本研究表明，COVID-19患者数量的增加间接影响了东京的EMS系统。
