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 |