All | SARS-CoV-2 positive | Controls | P | ||||
---|---|---|---|---|---|---|---|
N | 2837 | 96 | 2741 | ||||
Sex (n,%) | |||||||
Male | 1468 | 51.7 | 50 | 52.1 | 1418 | 51.7 | 0.946 |
Female | 1369 | 48.3 | 46 | 47.9 | 1323 | 48.3 | |
Age | |||||||
Mean (sd) | 8.7 | 4.3 | 8.52 | 4.52 | 8.6 | 4.5 | 0.798 |
Nursery school (n,%) | 800 | 23.2 | 28 | 29.2 | 772 | 28.2 | 0.800 |
Primary school (n,%) | 1061 | 35.1 | 38 | 39.6 | 1023 | 37.3 | |
Middle/high school (n,%) | 976 | 41.7 | 30 | 31.3 | 946 | 34.5 |