Table 1.
General characteristics of 538 vaccinated healthcare workers (HCWs) subjects by age, gender, and detection of antibodies against the receptor-binding domain (RBD), antibody detection against the S protein, S1 domain, S2 domain, and the detection of the level of antibodies against the nucleocapsid (N) protein of SARS-CoV-2.
| Parameters | Mean ± SD | Median (IQR) | Titers after Dilution Mean ± SD |
Titers after Dilution Median (IQR) |
% (N *) |
|---|---|---|---|---|---|
| Healthcare workers | 538 | ||||
| Age | 43.7 ± 12.3 | 47 (33–53) | - | - | - |
| Gender | |||||
| Male | - | - | - | - | 49.4% (266) |
| Female | - | - | - | - | 50.6% (272) |
| anti-N IgG (U/mL) | |||||
| <10 | 1.7 ± 1.9 | 0.99 (0.99–0.99) | - | - | 65.5% (352) |
| [10, 100] | 34.3 ± 22.8 | 26 (16–45) | - | - | 31.0% (167) |
| >100 | - | - | 440.4 ± 338.8 | 306 (201.75–625) | 3.5% (19) |
| anti-RBD IgG (U/mL) | |||||
| <10 | 5.0 ± 2.8 | 5 (4, 6) | - | - | 0.4% (2) |
| [10, 100] | 49.8 ± 34.2 | 40 (25.75–76) | - | - | 1.1% (6) |
| >100 | - | - | 1485.04 ± 311.10 | 1600 (1600–1600) | 98.5% (530) |
| anti-S1 IgG (U/mL) | |||||
| <10 | 5.0 | - | - | - | 0.2% (1) |
| [10, 100] | - | - | - | - | 0.0% (0) |
| >100 | - | - | 1357.2 ± 434.8 | 1600 (1284.75–1600) | 99.8% (537) |
| anti-S2 IgG (U/mL) | |||||
| <10 | 5.2 ± 2.4 | 5(3–7) | - | - | 13.5% (73) |
| [10, 100] | 40.0 ± 24.9 | 33.5(19–54) | - | - | 70.3% (378) |
| >100 | - | - | 156.8 ± 148.7 | 125 (80–189) | 16.2% (87) |
* N = the number and percentage of subjects in parentheses for every antibody-tested level.