Table 1.
Risk of SARS-CoV-2 Infection by Sociodemographic and Employment Characteristics Among All Healthcare Workers a
| Variables | Prevalence | Odds Ratio of SARS-CoV-2 Infection | ||||
|---|---|---|---|---|---|---|
| Cases (N = 4,919) | Controls (N = 4,803) | uOR | 95% CI | aOR | 95% CI | |
| Sex, male | 20.5 | 12.7 | 1.8 | 1.6–2.0 | 1.7 | 1.5–1.9 |
| Aged ≥40 y | 53.3 | 41.7 | 1.6 | 1.5–1.8 | 1.5 | 1.4–1.7 |
| Born abroad | 24.6 | 10.0 | 3.0 | 2.6–3.4 | 1.4 | 1.1–1.7 |
| Mother tongue other than French/English | 16.1 | 6.4 | 3.0 | 2.6–3.5 | 1.6 | 1.3–2.1 |
| Race/ethnicity | ||||||
| White (non-Hispanic) | 74.7 | 89.6 | Ref | Ref | ||
| Black | 11.0 | 2.8 | 4.8 | 3.9–5.9 | 2.3 | 1.7–3.0 |
| Asiatic | 2.6 | 1.5 | 2.3 | 1.7–3.2 | 1.3 | 0.9–1.9 |
| Hispanic | 2.8 | 1.7 | 2.3 | 1.7–3.1 | 1.1 | 0.7–1.5 |
| Arab | 3.7 | 2.0 | 2.2 | 1.7–2.9 | 0.9 | 0.7–1.3 |
| NR | 5.2 | 2.4 | 2.7 | 2.1–3.4 | 1.8 | 1.3–2.3 |
| Material deprivation index | ||||||
| Upper quartile | 23.9 | 27.5 | Ref | Ref | ||
| Two middle quartiles | 50.9 | 51.2 | 1.0 | 0.9–1.2 | 1.0 | 0.9–1.2 |
| Lower quartile | 25.2 | 21.4 | 1.3 | 1.1–1.5 | 1.0 | 0.9–1.2 |
| Type of employment | ||||||
| Admin/Management | 9.3 | 13.3 | Ref | Ref | ||
| Physician | 3.6 | 4.9 | 1.2 | 0.9–1.5 | 1.0 | 0.8–1.4 |
| Nursing personnel | 25.1 | 25.6 | 1.4 | 1.2–1.6 | 1.4 | 1.1–1.7 |
| Patient support assistant | 29.0 | 13.1 | 3.3 | 2.8–3.9 | 1.9 | 1.6–2.4 |
| Housekeeping | 3.8 | 1.0 | 5.3 | 3.8–7.6 | 3.6 | 2.5–5.4 |
| Social worker | 3.6 | 8.9 | 0.6 | 0.5–1.7 | 0.8 | 0.6–1.1 |
| Other b | 25.6 | 33.2 | 1.1 | 0.96–1.3 | 1.2 | 0.97–1.4 |
| Facility | ||||||
| ACH | 33.4 | 41.0 | Ref | Ref | ||
| LTCF | 22.8 | 12.2 | 2.4 | 2.2–2.8 | 1.5 | 1.2–1.9 |
| Private seniors’ homes | 12.0 | 4.1 | 3.5 | 3.0–4.3 | 2.1 | 1.6–2.6 |
| Other c | 31.8 | 42.7 | 0.9 | 0.8–1.0 | 1.1 | 0.97–1.3 |
| Private facility | 24.7 | 16.0 | 1.8 | 1.6–2.0 | 1.6 | 1.4–1.8 |
| Department | ||||||
| Admin | 8.9 | 12.2 | Ref | Ref | ||
| Elderly services | 20.7 | 9.9 | 3.0 | 2.5–3.5 | 1.2 | 0.9–1.5 |
| Medical departments | 15.0 | 9.9 | 2.1 | 1.7–2.5 | 1.8 | 1.5–2.3 |
| Emergency room | 6.0 | 6.5 | 1.3 | 1.1–1.6 | 1.2 | 0.9–1.5 |
| Intensive care unit | 4.6 | 6.0 | 1.1 | 0.9–1.3 | 1.0 | 0.8–1.3 |
| Clinics/external consultations | 7.1 | 13.4 | 0.7 | 0.6–0.9 | 0.7 | 0.6–0.9 |
| Other | 37.7 | 42.2 | 1.2 | 1.0–1.4 | 0.9 | 0.7–1.1 |
| Work experience <1 year | 21.8 | 11.9 | 2.1 | 1.9–2.4 | 1.5 | 1.3–1.7 |
| Work shift: evening or night | 21.0 | 12.7 | 1.8 | 1.6–2.0 | 1.1 | 0.97–1.2 |
| Working ≥40 hours per week | 16.7 | 12.7 | 1.4 | 1.2–1.5 | 1.3 | 1.2–1.5 |
| Compulsory overtime | 9.0 | 9.1 | 1.3 | 1.1–1.5 | 1.0 | 0.9–1.2 |
Note. ACH, acute-care hospital; aOR, adjusted odds ratio; LTCF, long-term care facility; NR; do not respond; ref, reference category; uOR, unadjusted odds ratio.
Logistic regression model adjusted for all presented characteristics and the health region.
Other types of employment: paramedic, security personnel, volunteer, stretcher bearer, kitchen staff, dentist or dental hygienist, special education teacher, building maintenance, laundry staff, occupational therapist, trainee, respiratory therapist, nutritionist, pharmacist or pharmacy assistant, physiotherapist, receptionist, laboratory technician, medical imaging technician, speech therapist, other.
Other facilities: health centers, clinics, rehabilitation center, other residential facilities, laboratory, pharmacy, nontraditional site for COVID-19 patient care, domiciliary work, administrative centers.