Mass gathering (MG) events may cause delayed emergency responses via various mechanisms and strain the resources of local emergency services. Therefore, preparedness, including adequate pre-planning and sufficient resourcing during MG events, is vital. The aim of this retrospective register study was to investigate the impact of MG events on the workload of rescue and emergency medical service (EMS) personnel during events to enable more precise and sufficient deployment of these authorities’ operative resources. The data from Finland covered of 25,124 EMS and rescue service missions during a three-year period (2015–2017), including data from nine MG events and reference material for the same weekdays two weeks before and after the event. The data were analysed through statistical and geospatial analyses. Our findings showed that missions increased in most events included in this study. Analysis of the missions’ reasons showed that the categories of violence, traffic accidents and other accidents and injuries increased during events, with violence-related missions showing the highest relative risk (RR 1.87, 95% CI 1.43–2.44). In the four-grade (A–D) urgency grading, the analysis showed an increase in category C missions and a decrease in non-urgent category D missions. The analysis indicated an increase in missions during the evening and night-time. The geospatial analysis revealed dense hotspots of missions in the vicinity of the event area. The workload for EMS and rescue service personnel increases during MG events. Most of the increase is allocated to EMS staff, peaking in evening and night hours. The geospatial analysis showed hotspots of missions on the outskirts of the actual event area during events; thus, the workload can also increase for those authority resources that are not directly allocated to the event. Detailed information regarding workloads is valuable for the authorities that are responsible for resource planning and preparedness for MG events. Replicating the study internationally would improve the methodology for the future.

中文翻译：

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群众集会的准备：群众集会期间救援和紧急医疗服务的工作量

群众聚集 (MG) 事件可能会通过各种机制导致应急响应延迟，并使当地应急服务的资源紧张。因此，做好准备，包括在 MG 事件期间进行充分的预先计划和充足的资源配置，是至关重要的。这项回顾性登记研究的目的是调查 MG 事件对事件期间救援和紧急医疗服务 (EMS) 人员工作量的影响，以便更准确和充分地部署这些当局的行动资源。芬兰的数据涵盖了三年期间（2015-2017 年）的 25,124 次 EMS 和救援服务任务，包括来自 9 次 MG 事件的数据和事件前后两周相同工作日的参考资料。通过统计和地理空间分析对数据进行了分析。我们的研究结果表明，在本研究中包含的大多数事件中，任务有所增加。对任务原因的分析表明，暴力、交通事故和其他事故和伤害的类别在事件期间有所增加，与暴力相关的任务显示出最高的相对风险（RR 1.87，95% CI 1.43-2.44）。在四级 (A-D) 紧急分级中，分析显示 C 类任务增加，非紧急 D 类任务减少。分析表明，晚上和夜间的任务有所增加。地理空间分析揭示了事件区域附近密集的任务热点。在 MG 事件期间，EMS 和救援服务人员的工作量会增加。大部分增长分配给 EMS 员工，在晚上和夜间达到高峰。地理空间分析显示，在活动期间，实际活动区域外围的任务热点；因此，对于那些没有直接分配给事件的权限资源，工作量也会增加。有关工作量的详细信息对于负责 MG 事件的资源规划和准备的当局很有价值。在国际上复制这项研究将改进未来的方法。