Table 2.
COVID-19 prevalence and clinical characteristics: data stratified by pandemic waves
| COVID-19 cases (all) | COVID-19 cases (first wave) | COVID-19 cases (second wave) | COVID-19 cases (third wave) | |||||
|---|---|---|---|---|---|---|---|---|
| n. | % | n. | % | n. | % | n. | % | |
| Total | 805 | 100 | 176 | 21,9 | 559 | 69,4 | 70 | 8,7 |
| Source of infection | ||||||||
| In-hospital | 175 | 21,7 | 70 | 39,7 | 89 | 15,9 | 16 | 22,8 |
| Out-of-hospital | 270 | 33,5 | 36 | 20,6 | 204 | 36,5 | 30 | 42,9 |
| Unknown | 360 | 44,8 | 70 | 39,7 | 266 | 47,6 | 24 | 34,3 |
| Clinical course | ||||||||
| Asymptomatics | 235 | 29,2 | 38 | 21,6 | 158 | 28,3 | 39 | 55,7 (*) |
| Mild conditions | 514 | 63,4 | 123 | 69,9 | 362 | 64,8 | 29 | 41,4 |
| Serious/critical conditions (hospitalized ones) | 56 | 7,4 | 15 | 8,5 | 39 | 6,9 | 2 | 2,9 |
| Deaths | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
* p < 0.001 compared to the number of asymptomatic cases diagnosed during the second wave of the COVID-19 pandemic.