Final multivariate model
| Variable | OR | 95% CI | P value |
| Household positive antibody | 6.94 | 4.15 to 11.6 | <0.001 |
| Household positive symptoms | 2.95 | 2.13 to 4.08 | <0.001 |
| Black ethnicity | 6.21 | 2.69 to 14.3 | <0.001 |
| Physiotherapist | 2.78 | 1.21 to 6.39 | 0.015 |
| Acute medicine specialty | 2.72 | 1.57 to 4.69 | <0.001 |
| Medical specialties | 2.33 | 1.40 to 3.88 | 0.001 |
| Inadequate PPE | 2.84 | 1.29 to 6.25 | 0.010 |
| Handover w/o distancing | 1.39 | 1.02 to 1.90 | 0.038 |
PPE, personal protective equipment.