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. 2022 Apr 21;80(1):38–45. doi: 10.1016/j.annemergmed.2022.03.009

Table 1.

Participant characteristics.

Participant Characteristic 1:1 Comparison
Raking Weighted Comparison
Paramedic Samples (n=1627) Blood Donor Samples (n=1627) Paramedic Samples (n=1713) Blood Donor Samples (n=19,513)
Women, n (%) 723 (44) 723 (44) 743 (43) 84634 (43)
Age category, n (%)
 17-24 years 48 (3.0) 48 (3.0) 49 (2.9) 558 (2.9)
 25-39 years 848 (52) 848 (52) 910 (53) 10,366 (53)
 40-59 years 672 (41) 672 (41) 694 (41) 7,905 (41)
 60 years 59 (3.6) 59 (3.6) 60 (3.5) 683 (3.5)
Location, n (%)
 British Columbia 710 (44) 710 (44) 773 (45) 8,806 (40)
 Alberta 45 (2.8) 45 (2.8) 45 (2.6) 513 (2.6)
 Saskatchewan 0 0 0 0
 Manitoba 49 (3.0) 49 (3.0) 49 (2.9) 558 (2.9)
 Ontario 823 (51) 823 (51) 846 (49) 9,638 (49)
Blood collection month, n (%)
 January-February 199 (12) 199 (12) 230 (13) 2,620 (13)
 March-April 559 (34) 559 (34) 596 (35) 6,789 (35)
 May-June 288 (18) 288 (18) 289 (17) 3,292 (17)
 July 581 (36) 581 (36) 598 (35) 6,812 (35)
COVID-19 vaccinated, n (%) 1,340 (82) 1,340 (82) 1,423 (83) 16,210 (83)