| Attendance | Cases* | % | Reference population | % | p-value |
| Yes | 89 | 67.4 | 244 | 92.4 | 0.000 |
| No | 21 | 15.9 | 17 | 6.4 |
|
| Unknown | 22 | 16.7 | 3 | 1.2 |
|
| Total | 132 | 100 | 264 | 100 |
|