Table 1.
Characteristics of the institutions from which participants were recruited (n = 17) including number of sites (different cities), number of beds, total number of healthcare workers working in institution, number of study participants and seropositivity
| Type of institution | Sites (n) | Inpatients (yes vs. no) | Beds (n) | ICU beds (n) | HCWs (n) | HCWs in study (n) | HCWs in study (%) | Seropositive HCWs (n) | Seropositive HCWs (%) |
|---|---|---|---|---|---|---|---|---|---|
| Total | 23 | NA | 3523 | 106 | 17 060 | 4664 | 27 | 139 | 3.0 |
| Acute care A | 3 | yes | 765 | 36 | 5930 | 1074 | 18 | 37 | 3.4 |
| Acute care B | 1 | yes | 370 | 10 | 2245 | 1023 | 46 | 39 | 3.8 |
| Acute care C | 3 | yes | 304 | 7 | 1367 | 534 | 39 | 9 | 1.7 |
| Acute care D | 1 | yes | 74 | 0 | 362 | 109 | 30 | 3 | 2.8 |
| Acute care E | 1 | yes | 46 | 0 | 178 | 66 | 37 | 1 | 1.5 |
| Acute care F | 1 | yes | 246 | 9 | 749 | 169 | 23 | 7 | 4.1 |
| Acute care G | 1 | yes | 310 | 12 | 740 | 171 | 23 | 3 | 1.8 |
| Acute care H | 1 | yes | 330 | 18 | 1788 | 448 | 25 | 18 | 4.0 |
| Acute care I | 1 | yes | 129 | 6 | 525 | 159 | 30 | 4 | 2.5 |
| Acute care J | 1 | yes | 100 | 8 | 632 | 109 | 17 | 3 | 2.8 |
| Geriatric acute care K | 1 | yes | 98 | 0 | 265 | 123 | 46 | 3 | 2.4 |
| Rehabilitation clinic L | 1 | yes | 135 | 0 | 510 | 168 | 33 | 7 | 4.2 |
| Psychiatric clinic M | 1 | yes | 242 | 0 | 360 | 190 | 53 | 1 | 0.5 |
| Psychiatric clinic N | 1 | yes | 150 | 0 | 391 | 108 | 28 | 1 | 0.9 |
| Psychiatric clinic O | 1 | yes | 224 | 0 | 780 | 98 | 13 | 1 | 1.0 |
| Psychiatry P | 3 | no | NA | NA | 178 | 88 | 49 | 2 | 2.3 |
| Blood donation Q | 1 | no | NA | NA | 60 | 27 | 45 | 0 | 0.0 |
ICU, Intensive Care Unit; HCWs, healthcare workers.