Publication date: Jul 07, 2025
Emergency medical dispatch is a crucial component of a national healthcare system. This study provides the first comprehensive analysis of the temporal patterns of emergency medical service evaluations in Ulaanbaatar, Mongolia, and evaluates the impact of COVID-19 lockdowns on those patterns. We analyzed emergency medical evaluations recorded by physicians following the dispatch calls received by the Emergency Medical Communication Center in Ulaanbaatar between 2016 and 2021. We assessed trends in the number of emergency calls, demographic distributions, and temporal patterns. Comparative analysis was conducted to assess the impact of COVID-19 lockdowns, with a focus on seasonal, weekly, and hourly variations. There were 558,457 emergency calls during the study period, and a total of 8 diagnoses (I, J, Y, F, K, G, O, and Z according to ICD-10) constituted 99. 1% of the emergency calls. The two most abundant causes for emergency calls in Ulaanbaatar are “Diseases of the circulatory system (I)” and “Diseases of the respiratory system (J)” in all seasons. We analyzed the temporal patterns of the calls and identified that the highest number of calls was received in winter, weekends, and evenings for the total number of calls. Further, we conducted an analysis of calls during COVID-19 strict lockdown periods. A retrospective analysis of the impacts of the COVID-19 pandemic on emergency calls showed that emergency calls decreased by 24% compared to the previous year. Notably, the difference between the COVID-19 strict lockdown period and the preceding period was more pronounced during periods of strict lockdown implementation. This is the first comprehensive analysis of EMS calls in Ulaanbaatar from 2016 to 2021, providing valuable insights into both long-term temporal trends and the effects of pandemic-related lockdowns. These findings can support improved EMS planning and inform public health policies in low- and middle-income countries. Not applicable. The online version contains supplementary material available at 10. 1186/s12873-025-01273-1.
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| Concepts | Keywords |
|---|---|
| Healthcare | COVID-19 impact |
| Pandemic | Emergency calls |
| Ulaanbaatar | Mongolia |
| Weekends | Temporal analysis |
| Ulaanbaatar |