| Characteristic | Cases (n = 67) (%) |
| First aid treatment | |
| Treatment for choking | 12 (17.9) |
| Rescue breathing | 4 (6.0) |
| CPR | 6 (9.0) |
| None | 45 (67.2) |
| Location of formal treatment | |
| Died at scene without treatment | 58 (86.6) |
| Treatment at scene | 6 (9.0) |
| Clinic | 1 (1.5) |
| Hospital | 2 (3.0) |