Table 1

Study population characteristics (n = 356)

Characteristic

No. of subjects

%


Gender


Male

252

70.8


Female

104

29.2


Age category (in years)


20 to 29

95

26.7


30 to 39

75

21.1


40 to 49

81

22.8


50 to 59

73

20.5


60 to 65

32

9.0


Ethnic group


Māori

62

17.4


NZ European

193

54.2


Other

63

17.7


Pacific

38

10.7


Highest qualification


None

102

28.7


School certificate

43

12.1


Overseas secondary school

15

4.2


Sixth form cert./Bursary

29

8.1


Trade certificate

87

24.4


Tertiary degree

66

18.5


Missing/Refused

14

3.9


In paid employment


Yes

244

68.5


No

109

30.6


Missing/Refused

3

0.8


Object involved in injury


Glass

111

31.2


Powered hand tools/machinery

103

28.9


Foreign body

39

11.0


Knife/sword/dagger

39

11.0


Non-powered hand tool

35

9.8


Lawnmower

28

7.9


Missing/Unknown

1

0.3


AUDIT score


0-7 low risk

242

68.0


8-15 hazardous drinking

71

19.9


16-19 severe hazardous drinking

13

3.7


≥ 20 probable dependence

14

3.9


Missing/Refused

16

4.5


Acute marijuana use (3 h before injury)


Yes

8

2.2


No

345

96.9


Missing/Refused

3

0.8


Usual marijuana use (at least weekly)


Yes

39

11.0


No

315

88.5


Missing/Refused

2

0.6


Other recreational drug use (at least weekly)


Yes

25

7.0


No

329

92.4


Current smoker


Yes

104

29.2


No

252

70.8


Acute sleep deprivation < 6 h in previous 24 h)


Yes

251

70.5


No

21

5.9


Missing/unknown

84

23.6


Thornley et al. BMC Public Health 2011 11:852   doi:10.1186/1471-2458-11-852

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