|
| Crashes occurrence | Total | |
| No n (%) | Yes n (%) | ||
| Excessive drowsiness | |||
| No | 146 (67.91) | 69 (32.09) | 215 |
| Yes | 49 (55.06) | 40 (44.94) | 89 |
| Total | 195 (64.15) | 109 (35.85) | 304 |