Table 2.
Patient characteristics, clinical variables and crash-related variables in DUI (BAC ≥30 mg/dL) and non-DUI patients
| DUI | Non-DUI | P value | |
| Gender, n (%) | <0.001 | ||
| Male | 568 (88.47) | 3807 (55.94) | |
| Female | 74 (11.53) | 2998 (44.06) | |
| Age (years) | 39.64 (12.76) | 44.07 (19.13) | <0.001* |
| Car, n (%) | 0.020 | ||
| Airbag | 25 (50.00) | 109 (68.13) | |
| No airbag | 25 (50.00) | 51 (31.88) | |
| Motorcycle, n (%) | <0.001 | ||
| Helmet | 433 (73.14) | 6003 (90.34) | |
| No helmet | 159 (26.86) | 642 (9.66) | |
| ISS | 13 (14) | 9 (7) | <0.001* |
| Hospital stay (days) | 8 (11) | 6 (7) | <0.001* |
| Mortality, n (%) | <0.001 | ||
| Alive | 612 (95.33) | 6735 (98.97) | |
| Death | 30 (4.67) | 70 (1.03) | |
| Seasons, n (%) | 0.522 | ||
| Spring | 135 (21.03) | 1464 (21.51) | |
| Summer | 153 (23.83) | 1729 (25.41) | |
| Autumn | 163 (25.39) | 1769 (26.00) | |
| Winter | 191 (29.75) | 1843 (27.08) | |
| Time, n (%) | <0.001 | ||
| 06:00–14:00 | 70 (10.90) | 3103 (45.60) | |
| 14:00–22:00 | 249 (38.79) | 2795 (41.07) | |
| 22:00–06:00 | 323 (50.31) | 907 (13.33) | |
| Weekdays, n (%) | <0.001 | ||
| Monday | 81 (12.62) | 1045 (15.36) | |
| Tuesday | 72 (11.21) | 1039 (15.27) | |
| Wednesday | 85 (13.24) | 942 (13.84) | |
| Thursday | 79 (12.31) | 1005 (14.77) | |
| Friday | 81 (12.62) | 1012 (14.87) | |
| Saturday | 120 (18.69) | 966 (14.20) | |
| Sunday | 124 (19.31) | 796 (11.70) |
*Mann-Whitney test.
BAC, blood alcohol concentration; DUI, driving under the influence; ISS, Injury Severity Score.