Personal | N | Healthy | Sick | Qualification |
Sandwich | 375 | 336 (89.6%) | 39 (10.4%) | 8.27 ± 1.91 |
Pizza | 157 | 127 (80.9%) | 30 (19.1%) | 7.82 ± 2.18 |
Pasty | 82 | 71 (86.9%) | 11 (13.4%) | 8.14 ± 2.09 |
Biscuits | 167 | 149 (89.2%) | 18 (10.8 %) | 8.20 ± 2.20 |
Beer | 63 | 56 (88.9%) | 7 (11.1%) | 7.89 ± 2.24 |
Bread | 180 | 150 (83.3%) | 30 (16.7%) | 7.99 ± 2.15 |
Nothing | 28 | 24 (85.7%) | 4 (14.3%) | 8.21 ± 2.27 |