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Volume 27, Number 9—September 2021

Risk for Acquiring Coronavirus Disease Illness among Emergency Medical Service Personnel Exposed to Aerosol-Generating Procedures

Aubrey Brown, Leilani Schwarcz, Catherine R. Counts, Leslie M. Barnard, Betty Y. Yang, Jamie M. Emert, Andrew Latimer, Christopher Drucker, John Lynch, Peter J. Kudenchuk, Michael R. Sayre, and Thomas ReaComments to Author 
Author affiliations: University of Washington, Seattle, Washington, USA (A. Brown, C.R. Counts, B.Y. Yang, A. Latimer, J. Lynch, P.J. Kudenchuk, M.R. Sayre, T. Rea); Public Health Seattle and King County Division of Emergency Medical Services, Seattle (L. Schwarcz, L.M. Barnard, J.M. Emert, C. Drucker)

Main Article

Table 3

Incidence of COVID-19 among EMS providers by COVID-19 patient encounter and AGP status cohort, King County, Washington, February 16–July 31, 2020*

Cohort COVID-19 patient encounter 2–14 d exposure window AGP status EMS provider COVID-19 infection Person-days at risk Incidence/10,000 person-days (95% CI) IRR (95% CI)
1 Yes Yes Yes 1 8,582 1.17 (0.03–6.49) 1.64 (0.22–12.26)
2 Yes Yes No 0 26,583 0 (0.0–1.39) 0 (0.0–1.50)
3 Yes No NA 18 252,867 0.71 (0.42–1.13) Referent
0.46 (0.23–0.82)
0.64 (0.30–1.36)
Post hoc
1 and 2 Yes Yes Y/N 1 35,165 0.28 (0.01–1.58) 0.40 (0.05–2.99)

*AGP, aerosol generating procedure; COVID-19, coronavirus disease; EMS, emergency medical service; IRR, incidence rate ratio; NA, not available

Main Article

Page created: June 16, 2021
Page updated: August 17, 2021
Page reviewed: August 17, 2021
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