Table 2.
Risk Factors for Disease Development Among HCP With Symptoms That Were Subject to a PCR Test (n=784)
| Characteristic | COVID-19 case frequency, % (n) | OR (95% CI) | p-value | AOR (95% CI) | p-value |
|---|---|---|---|---|---|
| Age, years | |||||
| <60 | 19.5 (135/691) | 1 | — | — | — |
| ≥60 | 22.6 (21/93) | 1.2 (0.7, 2.0) | 0.490 | — | — |
| Sex | |||||
| Male | 22.5 (38/169) | 1.2 (0.8, 1.8) | 0.341 | — | — |
| Female | 19.2 (118/615) | 1 | — | — | — |
| Professional category | |||||
| Physician | 28.2 (60/213) | 1.9 (1.1, 3.3) | 0.029 | 1.5 (0.7, 3.1) | 0.262 |
| Nurse | 18.1 (49/270) | 1.1 (0.6, 1.9) | 0.831 | 1.3 (0.6, 2.7) | 0.459 |
| Nurse assistant/technician | 14.6 (27/185) | 0.8 (0.4, 1.5) | 0.539 | 0.6 (0.3, 1.2) | 0.154 |
| Othera | 17.2 (20/116) | 1 | — | 1 | — |
| Contact reason | |||||
| Healthcare-associated | 13.4 (28/209) | 1 | — | 1 | — |
| Workplace social interactions | 20.1 (84/418) | 1.6 (1.0, 2.6) | 0.040 | 0.6 (0.3, 1.1) | 0.125 |
| Other social interactions | 28.0 (44/157) | 2.5 (1.5, 4.3) | 0.001 | 1.5 (0.8, 3.0) | 0.241 |
| Contact type | |||||
| Close | 22.8 (119/523) | 2.0 (1.0, 4.1) | 0.045 | 2.1 (0.8, 5.1) | 0.105 |
| Occasional | 14.8 (27/182) | 1.2 (0.6, 2.6) | 0.644 | 1.4 (0.5, 3.9) | 0.479 |
| Unknown | 12.7 (10/79) | 1 | — | 1 | — |
| Contact characteristics | |||||
| Not protected | 22.8 (112/491) | 1.9 (1.3, 2.7) | 0.001 | 2.2 (1.2, 3.9) | 0.009 |
| Protected | 13.7 (40/293) | 1 | — | 1 | — |
| Department | |||||
| Emergency service | 16.2 (6/37) | 0.6 (0.2, 1.4) | 0.235 | 0.7 (0.2, 1.9) | 0.442 |
| Pediatric areasb | 8.3 (4/48) | 0.3 (0.1, 0.8) | 0.016 | 0.4 (0.1, 2.2) | 0.112 |
| Critical care unitsc | 25.0 (30/120) | 1.0 (0.6, 1.7) | 0.941 | 0.8 (0.3, 1.7) | 0.296 |
| Adults medical wards | 14.9 (42/281) | 0.5 (0.3, 0.8) | 0.005 | 0.7 (0.4, 1.4) | 0.370 |
| Primary health care | 23.7 (23/97) | 0.9 (0.5, 1.6) | 0.756 | 1.1 (0.5, 2.2) | 0.888 |
| Non–COVID-19 wardsd | 25.4 (51/201) | 1 | — | 1 | — |
Note: AOR based on professional category, reason for contact, type of contact, contact characteristics, and department.
a
Hospital wardens, administrative assistants, physiotherapist, etc.
b
Pediatric emergency service, surgical pediatric wards, medical pediatric wards and pediatric ICU.
c
Medical ICU, surgical ICU, and operating theatre.
d
Non–COVID-19 wards: adults surgical wards; administrative areas; central services: laboratory, microbiology, pharmacy, radiology, blood bank, etc.
COVID-19, coronavirus disease 2019; HCP, healthcare personnel; ICU, intensive care unit; PCR, polymerase chain reaction.