Table 1 Sample characteristics (n = 34)

Sex

Male

30

88

Female

4

12

Vehicle type

Car

31

91

Motorcycle

3

9

Driving status

Driver

29

85

Passenger

5

15

Vehicle occupancy

Single occupant

19

63

Passengers present

11

37

Passenger details

1 passenger present

8

73

2 passengers present

2

18

4 passengers present

1

9

Presence of alcohol

Yes

11

32

No

23

68

Presence of drugs

Yes

5

15

No

29

85

Time of collision

06:00–17:59

13

38

18:00–05:59

21

62