Table 1. Distribution of COVID-19 infections post first dose of vaccination in HCWs (N=325).
*Thirty-seven breakthrough and 20 non-breakthrough infections.
**Prior to administration of the first dose of COVID-19 vaccine.
***Post-vaccination with at least one dose of vaccine.
COVID-19: coronavirus disease 2019; HCWs: healthcare workers
| Characteristic | Total (N=325) | Total infections*(n=57) | Unadjusted odds 95% CI | p-Value |
| Vaccination status | ||||
| Two doses | 279 (85.8%) | 45 (16.1%) | 1 | 0.104 |
| One dose | 46 (14.2%) | 12 (26.1%) | 0.54(0.26,1.1) | |
| Vaccine type | ||||
| BBV152 | 168 (51.7%) | 33 (19.6%) | 0.74 (0.41, 1.3) | 0.303 |
| AZD1222 | 157 (48.3%) | 24 (15.3%) | 1 | |
| Age (years) | ||||
| <35 | 255 (78.5%) | 46 (18%) | 1 | 0.651 |
| ≥35 | 70 (21.5%) | 11 (15.7%) | 1.2 (0.57, 2.4) | |
| Sex | ||||
| Male | 211 (64.9%) | 42 (19.9%) | 1 | 0.129 |
| Female | 114 (35.1%) | 15 (13.2%) | 1.6 (0.86, 3.1) | |
| HCW type | ||||
| Doctor | 258 (79.4%) | 48 (18.6%) | 1 | 0.324 |
| Other | 67(20.6%) | 9 (13.4%) | 1.4 (0.68, 3.2) | |
| History of COVID-19 infection** | ||||
| Present | 50 (15.4%) | 3 (6.0%) | 3.8 (1.1, 12.7) | 0.029 |
| Absent | 275 (84.6%) | 54 (19.6%) | 1 | |
| Masking adherence*** | ||||
| Always | 225 (69.2%) | 43 (19.1%) | 1 | 0.265 |
| Mostly/other | 100 (30.8%) | 14 (14%) | 1.4 (0.75, 2.8) | |
| Social distancing adherence*** | ||||
| Always | 206 (63.4%) | 34 (16.5%) | 1 | 0.520 |
| Mostly/other | 119 (36.6%) | 23 (19.3%) | 0.82 (0.46, 1.5) | |