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. 2021 Sep 29;9(2):e00391-21. doi: 10.1128/Spectrum.00391-21

Appendix 1A.

Characteristics of participants tested, by serology assay

Parameter Participants tested by:
Total participants
Abbott SARS-CoV-2 IgG
Roche anti-SARS-CoV-2
Wantai SARS-CoV-2 antibody ELISA
n % n % n % n %
Total participants tested 5,788 5,787 485 5,788
Age group (yrs)
 18–29 1,350 23.3 1,350 23.3 139 28.7 1,350 23.3
 30–39 1,617 27.9 1,617 27.9 139 28.7 1,617 27.9
 40–49 1,516 26.2 1,515 26.2 111 22.9 1,516 26.2
 50–59 1,001 17.3 1,001 17.3 68 14.0 1,001 17.3
 60+ 304 5.3 304 5.3 28 5.8 304 5.3
Sex
 Female 4,478 77.4 4,478 77.4 349 72.0 4,478 77.4
 Male 1,309 22.6 1,308 22.6 136 28.0 1,309 22.6
 Unknown 1 0.0 1 0.0 0 0.0 1 0.0
Ethnicity
 Irish (white) 4,444 76.8 4,444 76.8 313 64.5 4,444 76.8
 Any other white background 552 9.5 551 9.5 54 11.1 552 9.5
 Any Asian background 577 10.0 577 10.0 101 20.8 577 10.0
 Any African or black background 113 2.0 113 2.0 13 2.7 113 2.0
 Other 101 1.7 101 1.7 4 0.8 101 1.7
 Unknown 1 0.0 1 0.0 0 0 1 0.0
HCW role
 Nursing/midwifery 2,064 35.7 2,064 35.7 230 47.4 2,064 35.7
 Allied health 1,091 18.8 1,091 18.9 57 11.8 1,091 18.8
 Medical/dental 983 17.0 982 17.0 93 19.2 983 17.0
 Admin 803 13.9 803 13.9 33 6.8 803 13.9
 General support 434 7.5 434 7.5 21 4.3 434 7.5
 Health care assistant 286 4.9 286 4.9 45 9.3 286 4.9
 Other 127 2.2 127 2.2 6 1.2 127 2.2