Table 1. Baseline characteristics of healthcare workers accessing the occupational health services stratified by time of COVID-19 vaccination.
| Variables | Early vaccination (Feb 21—June 21) N (%) | Late vaccination (After June 21) N (%) | Non-vaccinated, N (%) | |
|---|---|---|---|---|
| Total | 1,535 | 1,451 | 100 | |
| Sex | Male (n = 745) | 382 (51.3) | 342 (45.9) | 21 (2.8) |
| Female (n = 2,339) | 1,152 (49.3) | 1,108 (47.4) | 79 (3.4) | |
| Age (years) | < 30 (n = 944) | 321 (34.0) | 573 (60.7) | 50 (5.3) |
| 30–40 (n = 914) | 453 (49.6) | 428 (46.8) | 33 (3.6) | |
| > 40 (n = 1,226) | 760 (62.0) | 449 (36.6) | 17 (1.4) | |
| Role | Clinical (n = 2,979) | 1,478 (49.6) | 1,402 (47.1) | 99 (3.3) |
| Non-clinical (n = 105) | 56 (53.3) | 48 (45.7) | 1 (1.0) | |
| Years at current role | < 1 (n = 574) | 113 (19.7) | 426 (74.2) | 35 (6.1) |
| 1–5 (n = 1,225) | 646 (52.7) | 544 (44.4) | 35 (2.9) | |
| 6–10 (n = 478) | 284 (59.4) | 183 (38.3) | 11 (2.3) | |
| > 10 (n = 807) | 491 (60.8) | 297 (36.8) | 19 (2.4) | |
| Number of known comorbidities | None (n = 2,153) | 977 (45.4) | 1,101 (51.1) | 75 (3.5) |
| 1 (n = 770) | 454 (59.0) | 297 (38.6) | 19 (2.5) | |
| > 1 (n = 161) | 103 (64.0) | 52 (32.3) | 6 (3.7) | |
| History of SARS-CoV-2 infection | Yes (n = 1,119) | 587 (52.5) | 503 (45.0) | 29 (2.6) |
| No (n = 1,967) | 948 (48.2) | 948 (48.2) | 71 (3.6) | |
| Body mass index | Underweight (n = 82) | 33 (40.2) | 46 (56.1) | 3 (3.7) |
| Healthy (n = 1,015) | 452 (44.5) | 517 (50.9) | 46 (4.5) | |
| Overweight (n = 930) | 475 (51.1) | 434 (46.7) | 21 (2.3) | |
| Obese (n = 1,048) | 570 (54.4) | 448 (42.7) | 30 (2.9) | |
| Highest level of education | O-levels (n = 1,293) | 625 (48.3) | 618 (47.8) | 50 (3.9) |
| A-levels (n = 362) | 138 (38.1) | 213 (58.8) | 11 (3.0) | |
| Diploma (n = 1,057) | 569 (53.8) | 454 (43.0) | 34 (3.2) | |
| University (n = 372) | 202 (54.3) | 165 (44.4) | 5 (1.3) | |
| Type of facility | Primary (n = 950) | 528 (55.6) | 380 (40.0) | 42 (4.4) |
| Secondary (n = 1,187) | 567 (47.8) | 593 (50.0) | 27 (2.3) | |
| Tertiary (n = 770) | 323 (41.9) | 421 (54.7) | 26 (3.4) | |
| Quaternary (n = 155) | 98 (63.2) | 52 (33.5) | 5 (3.2) | |
| Administrative authority | Local (n = 1,603) | 878 (54.8) | 670 (41.8) | 55 (3.4) |
| Government (n = 1,086) | 481 (44.3) | 569 (52.4) | 36 (3.3) | |
| Mission or private (n = 391) | 172 (44.0) | 210 (53.7) | 9 (2.3) | |
| Province | Harare (n = 959) | 536 (55.9) | 381 (39.7) | 42 (4.4) |
| Bulawayo (n = 467) | 244 (52.2) | 211 (45.2) | 12 (2.6) | |
| Mashonaland East (n = 271) | 81 (29.9) | 182 (67.2) | 8 (3.0) | |
| Mashonaland West (n = 275) | 117 (42.5) | 144 (52.4) | 14 (5.1) | |
| Mashonaland Central (n = 161) | 60 (37.3) | 96 (59.6) | 5 (3.1) | |
| Masvingo (n = 165) | 60 (36.4) | 98 (59.4) | 7 (4.2) | |
| Manicaland (n = 158) | 91 (57.6) | 65 (41.1) | 2 (1.3) | |
| Midlands (n = 164) | 71 (43.3) | 90 (54.9) | 3 (1.8) | |
| Matabeleland South (n = 331) | 184 (55.6) | 142 (42.9) | 5 (1.5) | |
⁑ = Row percentages