Table 1 Characteristics of study participants
Characteristics | Participants (n = 409) | |
|---|---|---|
Age, years | Median (min,max) | 21 (18, 40) |
18–19 (%) | 113 (27.6) | |
20–21 (%) | 123 (30.1) | |
22–23 (%) | 89 (21.8) | |
24–29 (%) | 71 (17.4) | |
30–40 (%) | 13 (3.2) | |
Gender | Male (%) | 247 (60.4) |
Female (%) | 162 (39.6) | |
Work Hours | Median (min, max) | 30 (0, 85) |
Study Hours | Median (min, max) | 5 (0, 60) |
Licence | No licence (%) | 6 (1) |
Learner (%) | 9 (2) | |
Provisional driver level 1 (%) | 39 (10) | |
Provisional driver level 2 (%) | 147 (36) | |
Full licence (%) | 208 (51) | |
Intention to Drive | Yes (%) | 184 (45) |
No (%) | 225 (55) | |
Number of passengers | Median (min, max) | 2 (0, 5) |
Audit-C Screening Score | Median (min, max) | 7 (2, 12) |
Risk of Harm from Audit-C screen | Low (%) | 3 (1) |
High (%) | 406 (99) | |
Sleep hours | Mean (SD) | 5.97 (1.87) |
Units of alcohol last 24 h | Median range = (min, max) | 12 (0–40) |
BAC Estimate | 0.000 (%) | 174 (43) |
0.001–0.049 (%) | 149 (36) | |
0.05–0.079 (%) | 28 (7) | |
0.08–0.149 (%) | 6 (1) | |
> 0.150 (%) | 28 (7) | |
Missing | 24 (6) | |
Perception of safety to drive | Not safe at all (%) | 37 (9) |
Fairly unsafe (%) | 66 (16) | |
Fairly safe (%) | 224 (55) | |
Completely safe (%) | 82 (20) | |
Change of intention to drive | Yes (%) | 85 (21) |
- Earlier (%) | - 33 (39) | |
- Later (%) | - 40 (47) | |
- Missing (%) | - 12 (14) | |
No (%) | 121 (30) | |
Not driving (%) | 201 (49) | |