Table 1.
Demographic and exposure characteristics of healthcare workers tested for COVID-1 9
| Characteristics | All | Negative | Positive | P Value | |
| No. (%) | 830 (100) | 750 (90.4) | 80 (9.6) | ||
| Sexa – No. (%) | 0.677 | ||||
| Female | 552 (66.7) | 497 (66.4) | 55 (68.8) | ||
| Male | 276 (33.3) | 251 (33.6) | 25 (31.2) | ||
| Agea, median (IQR), y | 46.0 (35.9-53.2) | 45.9 (35.7-53.0) | 47.6 (39.6-55.1) | 0.159 | |
| Servicea – No. (%) | 0.004 | ||||
| Inpatient | 414 (54.5) | 383 (55.6) | 31 (44.3) | ||
| ICU | 152 (20.0) | 138 (20.0) | 14 (20.0) | ||
| ER | 80 (10.5) | 74 (10.7) | 6 (8.6) | ||
| Outpatient | 54 (7.1) | 50 (7.3) | 4 (5.7) | ||
| Non-medical | 51 (6.7) | 38 (5.5) | 13 (18.6) | ||
| Out-of-hospital care | 8 (1.1) | 6 (0.9) | 2 (2.9) | ||
| Rolea – No. (%) | |||||
| Physician | 214 (26.1) | 182 (24.6) | 32 (40.5) | ||
| Resident | 79 (9.6) | 77 (10.4) | 2 (2.5) | ||
| Nurseb | 351 (42.9) | 323 (43.6) | 28 (35.4) | ||
| Nurse aide | 114 (13.9) | 104 (14.1) | 10 (12.7) | ||
| Rehabilitation therapistc | 4 (0.5) | 4 (0.5) | 0 (0.0) | ||
| Medical/X-Rays technologist | 35 (4.3) | 33 (4.5) | 2 (2.5) | ||
| Administrative staff | 12 (1.5) | 8 (1.1) | 4 (5.1) | ||
| Other non-medical staff | 10 (1.2) | 9 (1.2) | 1 (1.3) | ||
| Type of hospitala – No. (%) | 0.001 | ||||
| General hospital | 562 (68.0) | 522 (70.0) | 40 (50.0) | ||
| Children’s hospital | 40 (4.8) | 35 (4.7) | 5 (6.2) | ||
| Maternity hospital | 147 (17.8) | 120 (16.1) | 27 (33.8) | ||
| Trauma center | 77 (9.3) | 69 (9.2) | 8 (10.0) | ||
| Type of exposurea – No. (%) | 0.021 | ||||
| Direct care | 214 (28.6) | 199 (29.4) | 15 (21.1) | ||
| Patient consultation | 184 (24.6) | 170 (25.1) | 14 (19.7) | ||
| Shared working environment | 145 (19.4) | 121 (17.9) | 24 (33.8) | ||
| Aerosol-generating procedured | 25 (3.3) | 24 (3.6) | 1 (1.4) | ||
| Non-aerosol-generating procedure | 24 (3.2) | 20 (3.0) | 4 (5.6) | ||
| Other | 155 (20.7) | 142 (21.0) | 13 (18.3) | ||
| Exposure lengtha – No. (%) | 0.575 | ||||
| <15 min | 221 (27.9) | 198 (27.6) | 23 (30.7) | ||
| >15 min | 571 (72.1) | 519 (72.4) | 52 (69.3) | ||
| Exposure distancea – No. (%) | 0.284 | ||||
| >2 m | 60 (7.6) | 52 (7.2) | 8 (10.7) | ||
| <2 m | 734 (92.4) | 667 (92.8) | 67 (89.3) | ||
Abbreviations: IQR, interquartile range; ICU, intensive care unit; ER, emergency room.
a Presence of missing data. Percentages may not total 100 because of rounding.
b Includes nurses, midwives and pediatric nurses.
c Includes physiotherapists and speech therapists.
d Includes tracheal intubation, bronchial suctioning, bronchoscopy, non-invasive ventilation.