Table 2 Associations between HCW occupational factors and SARS-CoV-2 seropositivity of HCW study population and subgroups segregated by prior rt-PCR testing
All HCWs (n = 1,557) | Not tested by rt-PCR (n = 1,138) | Tested by rt-PCR (n = 419) | |||||||
|---|---|---|---|---|---|---|---|---|---|
HCWs, n (%) | COVID-19 AB prevalence, n (%) | Adjusted OR (95% CI)1 | HCWs, n (%) | COVID-19 AB prevalence, n (%) | Adjusted OR (95% CI)1 | HCWs, n (%) | COVID-19 AB prevalence, n (%) | Adjusted OR (95% CI)1 | |
Total | 1557 (100) | 165 (10.6) | 1138 (100) | 91 (8.0) | 419 (100) | 74 (17.7) | |||
Role 2 | |||||||||
Physician | 246 (15.8) | 17 (6.9) | 0.59 (0.27–1.29) | 183 (16.1) | 10 (5.5) | 0.75 (0.27–2.15) | 63 (15.0) | 7 (11.1) | 0.41 (0.11–1.49) |
Nurse | 705 (45.3) | 90 (12.8) | 1.47 (0.81–2.80) | 478 (42.0) | 40 (8.4) | 1.81 (0.81–4.55) | 227 (54.2) | 50 (22.0) | 1.24 (0.49–3.38) |
Student | 69 (4.4) | 5 (7.2) | 0.75 (0.22–2.20) | 64 (5.6) | 5 (7.8) | 1.05 (0.28–3.59) | 5 (1.2) | 0 (0.0) | - |
Ancillary clinical staff | 88 (5.7) | 7 (8.0) | 0.91 (0.32–2.36) | 55 (4.8) | 4 (7.3) | 1.48 (0.36–5.32) | 33 (7.9) | 3 (9.1) | 0.46 (0.08–2.19) |
Administrative | 205 (13.2) | 23 (11.2) | 1.76 (0.86–3.69) | 164 (14.4) | 18 (11.0) | 2.69 (1.10–7.10) | 41 (9.8) | 5 (12.2) | 0.86 (0.21–3.30) |
Food/environmental | 46 (3.0) | 7 (15.2) | 4.85 (1.51–14.85) | 37 (3.3) | 6 (16.2) | 8.28 (2.16–31.48) | 9 (2.1) | 1 (11.1) | 1.52 (0.06–17.75) |
Other | 199 (12.8) | 16 (8.0) | 0.70 (0.39–1.18) | 157 (13.8) | 8 (5.1) | 0.54 (0.24–1.09) | 42 (10.0) | 8 (19.0) | 1.19 (0.48–2.65) |
Location 3 | |||||||||
COVID ICU | 171 (11.0) | 26 (15.2) | 2.28 (1.29–3.96) | 100 (8.8) | 10 (10.0) | 2.35 (0.97–5.32) | 71 (16.9) | 16 (22.5) | 1.65 (0.71–3.79) |
Non-COVID ICU | 364 (23.4) | 38 (10.4) | 0.89 (0.56–1.39) | 258 (22.7) | 18 (7.0) | 0.77 (0.40–1.40) | 106 (25.3) | 20 (18.9) | 1.04 (0.49–2.16) |
COVID ward | 261 (16.8) | 35 (13.4) | 1.59 (1.01–2.48) | 133 (11.7) | 10 (7.5) | 1.21 (0.51–2.60) | 128 (30.5) | 25 (19.5) | 1.26 (0.67–2.35) |
Non-COVID ward | 436 (28.0) | 50 (11.5) | 1.26 (0.85–1.85) | 309 (27.2) | 21 (6.8) | 0.85 (0.47–1.47) | 127 (30.3) | 29 (22.8) | 2.63 (1.40–4.97) |
Labor and delivery | 113 (7.3) | 4 (3.5) | 0.24 (0.06–0.72) | 88 (7.7) | 4 (4.5) | 0.50 (0.12–1.56) | 25 (6.0) | 0 (0.0) | - |
Operating room | 196 (12.6) | 15 (7.7) | 0.99 (0.53–1.78) | 173 (15.2) | 13 (7.5) | 1.13 (0.55–2.17) | 23 (5.5) | 2 (8.7) | 0.76 (0.11–3.43) |
Non-operating room procedural | 198 (12.7) | 16 (8.1) | 0.91 (0.49–1.59) | 155 (13.6) | 14 (9.0) | 1.44 (0.72–2.74) | 43 (10.3) | 2 (4.7) | 0.36 (0.05–1.34) |
Emergency department | 250 (16.1) | 20 (8.0) | 0.70 (0.40–1.18) | 199 (17.5) | 13 (6.5) | 0.62 (0.31–1.19) | 51 (12.2) | 7 (13.7) | 1.02 (0.36–2.67) |
Outpatient clinical unit | 188 (12.1) | 13 (6.9) | 0.70 (0.36–1.27) | 143 (12.6) | 8 (5.6) | 0.72 (0.30–1.53) | 45 (10.7) | 5 (11.1) | 0.63 (0.19–1.73) |
Non-clinical unit | 249 (16.0) | 21 (8.4) | 0.70 (0.37–1.24) | 201 (17.7) | 18 (9.0) | 0.76 (0.37–1.51) | 48 (11.5) | 3 (6.2) | 0.47 (0.09–1.76) |
Job-related exposures 4 | |||||||||
Cared for COVID patient | 599 (38.5) | 69 (11.5) | 1.10 (0.79–1.54) | 396 (34.8) | 29 (7.3) | 0.85 (0.52–1.34) | 203 (48.4) | 40 (19.7) | 1.13 (0.67–1.92) |
3 + days in contact with COVID patient4 | 263 (43.9) | 35 (13.3) | 1.39 (0.83–2.33) | 158 (39.9) | 19 (12.0) | 2.84 (1.27–6.69) | 105 (51.7) | 16 (15.2) | 0.61 (0.29–1.24) |
Participated in aerosol-generating procedure4 | 160 (26.7) | 15 (9.4) | 0.70 (0.37–1.27) | 116 (29.3) | 6 (5.2) | 0.51 (0.18–1.27) | 44 (21.7) | 9 (20.5) | 1.10 (0.44–2.55) |