Table 1 Characteristics of HCWs with first infection and reinfection of SARS-CoV-2
Characteristics | Total (n = 262) | First infection (n = 101) | Reinfection (n = 161) | P |
|---|---|---|---|---|
Sex | Â | Â | Â | Â |
 Female | 212 (80.9) | 77 (76.2) | 135 (83.9) | 0.127 |
 Male | 50 (19.1) | 24 (23.8) | 26 (16.1) |  |
Age, years | 30 (27,33) | 29 (27,32) | 30 (27,34) | 0.116 |
Age, years | Â | Â | Â | Â |
 <30 | 128 (48.9) | 52 (51.5) | 76 (47.2) | 0.500 |
 ≥30 | 134 (51.1) | 49(48.5) | 85 (52.8) |  |
Type of employment | Â | Â | Â | Â |
 Physician | 48 (18.3) | 24 (23.8) | 24 (14.9) | 0.083 |
 Nursing staff | 110 (42.0) | 33 (32.7) | 77 (47.8) |  |
 Other health-assisting occupations | 64 (24.4) | 27 (26.7) | 37 (23.0) |  |
 Management and administrative staff | 40 (15.3) | 17 (16.8) | 23 (14.3) |  |
Classification of medical personnel | Â | Â | Â | Â |
Medical staff category 1 | 158(84.5) | 57(79.2) | 101(87.8) | 0.111 |
Medical staff category 2 | 29(15.5) | 15(20.8) | 14(12.2) | Â |
Type of vaccine | Â | Â | Â | Â |
Inactivated vaccine | 234 (91.1) | 81 (81.0) | 153 (97.5) | < 0.001 |
Non-inactivated vaccine | 23 (8.9) | 19 (19.0) | 4 (2.5) | Â |
Doses of vaccine | Â | Â | Â | Â |
≤ 2 | 25(8.5) | 7(6.9) | 18(11.2) | < 0.001 |
3 | 207(79.0) | 70(69.3) | 137(85.1) | Â |
4 | 30(11.5) | 24(23.8) | 6(3.7) | Â |
Interval between the latest dose and infection | 493.8 (175.2) | 427.8 (205.3) | 536.2 (137.7) | < 0.001 |