COVID-19 exposures and ORs of COVID-19 like illness (self-reported COVID-19 like illness or a positive COVID-19 test) in exposed healthcare workers adjusting for age, gender, and country
| OR (95% CI) | P value | |
| Contact with COVID-19 patients in the workplace: | <0.0001* | |
| Not very frequent (5%–10% of my time) | Ref | – |
| Somewhat frequent (11%–25% of my time) | 1.13 (0.84 to 1.52) | 0.4 |
| Frequent (26%–50% of my time) | 1.40 (1.03 to 1.89) | 0.031 |
| Very frequent (51%–75% of my time) | 1.69 (1.22 to 2.33) | 0.0014 |
| Continuous (greater than 75% of my time) | 1.65 (1.19 to 2.28) | 0.0026 |
| Close contact with any suspected or confirmed case of COVID-19 inside the workplace while not wearing COVID-recommended PPE | ||
| No | Ref | – |
| Not sure | 1.53 (1.18 to 1.98) | 0.0015 |
| Yes | 1.65 (1.34 to 2.04) | <0.0001 |
| Close contact with anyone outside the workplace with a confirmed diagnosis of COVID-19 | ||
| No | Ref | – |
| Not sure | 0.86 (0.67 to 1.11) | 0.26 |
| Yes | 1.87 (1.49 to 2.33) | <0.0001 |
*This value is p trend.