Table 3.
Incidence risk ratio (IRR) and 95 confidence intervals (CI) of factors associated with COVID-19 infection in hospitals’ workers calculated using the Poisson regression adjusted for age and number of PCR test performed.
| Workers’ characteristics | Adjusted IRR (95% CI) | p |
|---|---|---|
| Age | 0.99 (0.98–0.99) | 0.012 |
| Sex | ||
| Men | 0.94 (0.80–1.1) | 0.422 |
| Women | 1 | |
| Work tasks | ||
| Physician | 1 | |
| Nurse | 1.18 (0.94–1.49) | 0.153 |
| Nurse aid | 1.18 (0.91–1.52) | 0.203 |
| Other HCW | 0.70 (0.50–0.98) | 0.036 |
| Technician | 0.72 (0.43–1.22) | 0.223 |
| Clerks | 1.18 (0.79–1.76) | 0.428 |
| Wards | ||
| Other medicines | 1 | |
| Anesthesia and resuscitation | 1.10 (0.61–1.97) | 0.751 |
| Others | 1.48 (0.98–2.23) | 0.060 |
| Surgeries | 1.37 (0.90–2.08) | 0.135 |
| Radiology and nuclear medicine | 1.96 (1.14–3.36) | 0.015 |
| Administration and technicians | 1.85 (1.13–3.04) | 0.014 |
| First aid | 2.44 (1.56–3.83) | 0.000 |
| Pneumology—Covid | 2.72 (1.65–4.48) | 0.000 |
| Rehabilitation—Covid | 3.59 (2.14–6.04) | 0.000 |
| Internal medicine and clinical medicine—pre-Covid | 3.52 (2.28–5.42) | 0.000 |
| Emergency medicine | 3.70 (2.15–6.37) | 0.000 |
| Geriatry—Covid | 5.96 (3.64–9.76) | 0.000 |
| Infective diseases—Covid | 5.75 (3.54–9.33) | 0.000 |
| Long term—Covid | 7.15 (4.59–11.14) | 0.000 |