Table IV.
Association of healthcare personnel participant characteristics with laboratory-confirmed influenza, Canada 2010/11–2013/14 influenza seasons
| Factor | Crude OR (95% CI) |
aOR (95% CI)a |
|---|---|---|
| Exposure | ||
| No known | Referent | Referent |
| Patient | 1.11 (0.53–2.32) | 0.82 (0.37–1.80) |
| Household exposure | 6.73 (3.54–12.8)** | 6.44 (3.35–12.4)** |
| Co-worker exposure | 3.21 (1.40–7.36)* | 2.96 (1.22–7.15)* |
| Social exposure | 5.19 (2.23–12.1)** | 4.25 (1.74–10.4)* |
| Multiple | 3.73 (1.87–7.42)** | 3.05 (1.48–6.28)* |
| Age, 10-year increase | 0.85 (0.70–1.02) | 0.92 (0.75–1.14) |
| Female (vs male) | 1.19 (0.62–2.29) | 1.04 (0.50–2.15) |
| Asthma | 1.35 (0.77–2.37) | |
| Hands-to-face habits | 1.39 (0.90–2.14) | 1.49 (0.92–2.43) |
| Use refillable water bottle | 1.13 (0.63–2.03) | |
| Daily handwashing at home, N | 0.99 (0.96–1.02) | |
| Reported stress level | ||
| Not at all/a bit | Referent | |
| Quite a bit/extreme | 1.03 (0.67–1.58) | |
| Hours of sleep per 24 h | 0.90 (0.73–1.12) | |
| Smoking habits | Referent | |
| Never | 0.93 (0.58–1.51) | |
| Former | 1.28 (0.67–2.43) | |
| Current (occasional or daily) | ||
| Influenza vaccination, current season | 0.51 (0.32–0.80)* | 0.56 (0.33–0.93)* |
| Housemates, N | 1.06 (0.91–1.23) | |
| Close non-household contacts/week, N | 1.00 (0.99–1.02) | |
| Occupation | Referent | |
| Support services staffb | 1.77 (1.11–2.83)* | |
| Nurse | 1.10 (0.45–2.67) | |
| Physician | 2.25 (1.26–4.02)* | |
| Allied health staffc | ||
| Physical contact with patients | 1.68 (1.11–2.55)* | 1.96 (1.20–3.20)* |
| Years working in profession | 0.99 (0.98–1.01) | |
| Hours of work per week, 10-h increase | 0.85 (0.67–1.09) | |
| Protective equipment used | ||
| Limited | Referent | |
| Partial | 1.59 (0.71–3.59) | |
| Full | 1.52 (0.72–3.21) | |
| Not applicable | 1.10 (0.51–2.37) | |
aOR, adjusted odds ratio; AGMP, aerosol-generating medical procedure; ARI, acute respiratory illness; OR, odds ratio.
*P≤0.05.
**P≤0.001.
Adjusted for all column variables with estimates in column.
Administrative staff, patient attendants, housekeeping, laboratory technologists, infection control and others.
Medical imaging, pharmacists, physiotherapists, occupational and respiratory therapists, counsellors and others.
Limited: occasional use of surgical mask or N95 respirator, gloves and hand hygiene after contact. Partial: usually/always use surgical mask or N95 respirator, gloves and hand hygiene after contact. Full: usually/always use surgical mask or N95 respirator, gloves and hand hygiene after contact plus goggles/eye protection.