Table 3.
SARS-CoV-2 infection risk factors.
| Category | Participants | ELISA | Immunoblot | ||
|---|---|---|---|---|---|
| Positive Results |
Seroprevalence (95% CI) | Positive Results |
Seroprevalence (95% CI) | ||
| Occupation involving constant contact with people (i.e., physicians, nurses, shop assistants, civil servants) | |||||
| Yes | 749 | 11 | 1.47% (0.82–2.61) |
9 | 1.20% (0.63–2.27) |
| No | 751 | 14 | 1.86% (1.11–3.11) |
5 | 0.67% (0.29–1.55) |
| Travelling abroad | |||||
| Yes | 574 | 16 | 2.93% (1.81–4.70) |
8 | 1.46% (0.74–2.86) |
| No | 953 | 9 | 0.94% (0.50–1.78) |
6 | 0.63% (0.29–1.37) |
| Compliance with epidemiological recommendations (i.e., remote work, wearing a mask covering nose and mouth, avoiding contact with other people, avoiding the use of public transport) | |||||
| No | 46 | 1 | 2.17% (0.11–11.33) |
1 | 2.17% (0.11–11.34) |
| At some point | 405 | 6 | 1.48% (0.68–3.19) |
4 | 0.99% (0.39–2.51) |
| Yes, in general |
1049 | 18 | 1.72% (1.09–2.70) |
9 | 0.86% (0.45–1.62) |
| Known contact with SARS-CoV-2 infected person | |||||
| Yes | 40 | 2 | 5.00% (0.85–15.79) |
2 | 5.00% (0.89–16.50) |
| No | 375 | 7 | 1.87% (0.91–3.80) |
5 | 1.33% (0.57–3.08) |
| Not known | 1085 | 16 | 1.47% (0.91–2.38) |
7 | 0.65% (0.31–1.33) |