Table 2.
Baseline characteristics of the study participants.
| Variables | Cases (N = 414) |
Controls (N = 828) |
P value |
|---|---|---|---|
| Gender, n (%) | < .001a | ||
| Male | 159 (38.4) | 434 (52.4) | |
| Female | 255 (61.6) | 394 (47.6) | |
| Age (years), median (IQR) | 38 (18–55) | 40 (25–56) | .353b |
| Time since last vaccination dose (months), median (IQR) | 6.8 (3.0–8.0) | 3.8 (2.9–7.5) | .01b |
| Vaccination status, n (%) | .006a | ||
| Unvaccinated | 29 (7.0) | 37 (4.5) | |
| Partial vaccination | 10 (2.4) | 10 (1.2) | |
| Full vaccination | 243 (58.7) | 445 (53.7) | |
| Booster vaccination | 132 (31.9) | 336 (40.6) |
aχ2 test.
bIndependent samples Mann – Whitney U test.