Analyzing Emergency Call Volume, Call Durations, and Unanswered Calls During the First Two Waves of the COVID-19 Pandemic Compared to 2019: An Observational Study of Routine Data from Seven Bavarian Dispatch Centres

Overview

Journal Heliyon

Specialty Social Sciences

Date 2024 Feb 9

PMID 38333836

Authors

Florian Dax

Moritz Waibel

Katharina Kneissl

Stephan Pruckner

Marc Lazarovici

Florian Hoffmann

Kathrin Hegenberg

Affiliations

Soon will be listed here.

Abstract

Background: The spread of the COVID-19 pandemic and the corresponding implementation of measures such as stay-at-home orders and curfews had a major impact on health systems, including emergency medical services. This study examined the effect of the pandemic on call volumes, duration of calls and unanswered calls to the emergency number 112.

Method: For this retrospective, descriptive study, 986,650 calls to seven emergency dispatch centres in Bavaria between January 01, 2019 and May 31, 2021 were analysed. The absolute number of calls and calls per 100,000 inhabitants as well as the number of unanswered calls are reported. The Mann‒Whitney test was used to compare mean call durations between 2019 and 2020/2021 during several periods.

Results: Call volume declined during the pandemic, especially during periods with strict lockdown restrictions. The largest decline (-12.9 %) occurred during the first lockdown. The largest reduction in the number of emergency calls overall (-25.3 %) occurred on weekends during the second lockdown. Emergency call duration increased, with the largest increase (+13 s) occurring during the "light" lockdown. The number of unanswered calls remained at a similar level as before the pandemic.

Conclusion: This study showed that the studied Bavarian dispatch centres experienced lower call volumes and longer call durations during the first two waves of the COVID-19 pandemic (up to May 2021). Longer call durations could be the result of additional questions to identify potentially infectious patients. The fact that the number of unanswered calls hardly changed may indicate that the dispatch centres were not overwhelmed during the study period.

References

Prezant D, Lancet E, Zeig-Owens R, Lai P, Appel D, Webber M . System impacts of the COVID-19 pandemic on New York City's emergency medical services. J Am Coll Emerg Physicians Open. 2021; 1(6):1205-1213. PMC: 7771735. DOI: 10.1002/emp2.12301. View

Azbel M, Heinanen M, Laaperi M, Kuisma M . Correction to: Effects of the COVID-19 pandemic on trauma-related emergency medical service calls: a retrospective cohort study. BMC Emerg Med. 2021; 21(1):140. PMC: 8601770. DOI: 10.1186/s12873-021-00511-6. View

San I, Usul E, Bekgoz B, Korkut S . Effects of COVID-19 Pandemic on Emergency Medical Services. Int J Clin Pract. 2020; 75(5):e13885. PMC: 7883062. DOI: 10.1111/ijcp.13885. View

Jensen T, Holgersen M, Jespersen M, Blomberg S, Folke F, Lippert F . Strategies to Handle Increased Demand in the COVID-19 Crisis: A Coronavirus EMS Support Track and a Web-Based Self-Triage System. Prehosp Emerg Care. 2020; 25(1):28-38. DOI: 10.1080/10903127.2020.1817212. View

Muller F, Hummers E, Jablonka A, Schmidt T, Noack E . [Impact of the COVID-19 lockdown on emergency medical service operations]. Notf Rett Med. 2021; 25(5):341-347. PMC: 8060906. DOI: 10.1007/s10049-021-00873-1. View

Ferron R, Agarwal G, Cooper R, Munkley D . The effect of COVID-19 on emergency medical service call volumes and patient acuity: a cross-sectional study in Niagara, Ontario. BMC Emerg Med. 2021; 21(1):39. PMC: 8006102. DOI: 10.1186/s12873-021-00431-5. View

Azbel M, Heinanen M, Laaperi M, Kuisma M . Effects of the COVID-19 pandemic on trauma-related emergency medical service calls: a retrospective cohort study. BMC Emerg Med. 2021; 21(1):102. PMC: 8426589. DOI: 10.1186/s12873-021-00495-3. View

Dicker B, Swain A, Todd V, Tunnage B, McConachy E, Drake H . Changes in demand for emergency ambulances during a nationwide lockdown that resulted in elimination of COVID-19: an observational study from New Zealand. BMJ Open. 2020; 10(12):e044726. PMC: 7759754. DOI: 10.1136/bmjopen-2020-044726. View

Igarashi Y, Yabuki M, Norii T, Yokobori S, Yokota H . Quantitative analysis of the impact of COVID-19 on the emergency medical services system in Tokyo. Acute Med Surg. 2021; 8(1):e709. PMC: 8604116. DOI: 10.1002/ams2.709. View

10.

Hegenberg K, Trentzsch H, Gross S, Pruckner S . Use of pre-hospital emergency medical services in urban and rural municipalities over a 10 year period: an observational study based on routinely collected dispatch data. Scand J Trauma Resusc Emerg Med. 2019; 27(1):35. PMC: 6444540. DOI: 10.1186/s13049-019-0607-5. View

11.

Veser A, Sieber F, Gross S, Pruckner S . The demographic impact on the demand for emergency medical services in the urban and rural regions of Bavaria, 2012-2032. Z Gesundh Wiss. 2015; 23(4):181-188. PMC: 4502287. DOI: 10.1007/s10389-015-0675-6. View

12.

Dahmen J, Baker L, Breuer F, Homrighausen K, Pommerenke C, Stiepak J . [COVID-19 Stress test for ensuring emergency healthcare: strategy and response of emergency medical services in Berlin]. Anaesthesist. 2020; 70(5):420-431. PMC: 7692437. DOI: 10.1007/s00101-020-00890-8. View

13.

Lazzerini M, Barbi E, Apicella A, Marchetti F, Cardinale F, Trobia G . Delayed access or provision of care in Italy resulting from fear of COVID-19. Lancet Child Adolesc Health. 2020; 4(5):e10-e11. PMC: 7146704. DOI: 10.1016/S2352-4642(20)30108-5. View

14.

OConnor A, Hannah H, Burnor E, Fukutaki K, Peterson T, Ballard D . Emergency Medical Service Utilization and Response Following COVID-19 Emergency and Stay-at-Home Policies: An Interrupted Time-Series Analysis. Cureus. 2021; 13(11):e19794. PMC: 8692163. DOI: 10.7759/cureus.19794. View

15.

Saberian P, Conovaloff J, Vahidi E, Hasani-Sharamin P, Kolivand P . How the COVID-19 Epidemic Affected Prehospital Emergency Medical Services in Tehran, Iran. West J Emerg Med. 2020; 21(6):110-116. PMC: 7673868. DOI: 10.5811/westjem.2020.8.48679. View

16.

Chang H, Huang N, Lee C, Hsu Y, Hsieh C, Chou Y . The impact of the SARS epidemic on the utilization of medical services: SARS and the fear of SARS. Am J Public Health. 2004; 94(4):562-4. PMC: 1448298. DOI: 10.2105/ajph.94.4.562. View

17.

Dami F, Berthoz V . Lausanne medical dispatch centre's response to COVID-19. Scand J Trauma Resusc Emerg Med. 2020; 28(1):37. PMC: 7218525. DOI: 10.1186/s13049-020-00735-8. View

18.

Al-Wathinani A, Hertelendy A, Alhurishi S, Mobrad A, Alhazmi R, Altuwaijri M . Increased Emergency Calls during the COVID-19 Pandemic in Saudi Arabia: A National Retrospective Study. Healthcare (Basel). 2020; 9(1). PMC: 7823911. DOI: 10.3390/healthcare9010014. View

19.

Friedman M, Strayer R . Prehospital Care at the Epicenter of a Pandemic: The New York City EMS Response. Acad Emerg Med. 2020; 27(8):797-801. PMC: 7323300. DOI: 10.1111/acem.14045. View

20.

Penverne Y, Leclere B, Labady J, Berthier F, Jenvrin J, Javaudin F . Impact of two-level filtering on emergency medical communication center triage during the COVID-19 pandemic: an uncontrolled before-after study. Scand J Trauma Resusc Emerg Med. 2020; 28(1):80. PMC: 7427752. DOI: 10.1186/s13049-020-00775-0. View