Table 1.
Prevalence of anti-SARS-CoV-2 IgG antibodies in Poznań metropolitan area.
| Category | Participants | ELISA | Immunoblot | ||
|---|---|---|---|---|---|
| Positive Results |
Seroprevalence (95% CI) | Positive Results |
Seroprevalence (95% CI) | ||
| Overall | |||||
| 1500 | 25 | 1.67% (1.13–2.45) |
14 | 0.93% (0.56–1.56) |
|
| Gender | |||||
| Female | 896 | 14 | 1.56% (0.93–2.60) |
8 | 0.89% (0.45–1.75) |
| Male | 604 | 11 | 1.82% (1.02–3.23) |
6 | 0.99% (0.46–2.15) |
| Age | |||||
| 18–33 | 623 | 10 | 1.61% (0.87–2.92) |
5 | 0.80% (0.34–1.87) |
| 34–49 | 606 | 11 | 1.82% (1.02–3.22) |
7 | 1.16% (0.56–2.37) |
| 50–65 | 194 | 2 | 1.03% (0.18–3.68) |
0 | 0.00% (0.00–1.94) |
| 65+ | 77 | 2 | 2.60% (0.46–8.99) |
2 | 2.60% (0.46–8.99) |
| Test for the SARS-CoV-2 presence | |||||
| Positive | 7 | 3 | 42.86% (15.82–74.95) |
3 | 42.86% (15.82–74.95) |
| Negative | 349 | 8 | 2.29% (1.17–4.46) |
6 | 1.72% (0.79–3.70) |
| Not tested | 1144 | 14 | 1.22% (0.73–2.04) |
5 | 0.44% (0.19–1.02) |