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. 2010 Jan 1;33(1):69–74. doi: 10.1093/sleep/33.1.69

Table 1.

Demographic characteristics of the sample (N = 1033)

Gender N %
    Male 752 73.0
    Female 281 27.0
Age (y)
    18-24 203 19.7
    25-34 230 22.3
    35-44 230 22.3
    45-54 200 19.4
    55-64 114 11.0
    > 65 25 2.4
Ethnic Status
    Caucasian 909 88.0
    Other 124 12.0
Marital Status
    Married/de facto 504 48.8
    Single 529 51.2
Employment Status
    Employed 823 79.7
    Unemployed 53 5.1
    Not in labour force 157 15.2
Education
    Bachelor degree or above 173 16.7
    Diploma 59 5.7
    Vocational qualification 378 36.6
    High school only 423 41.0
Type of Traumatic Injury
    Motor vehicle accident 666 64.5
    Industrial accident 71 6.9
    Assault 62 6.0
    Traumatic fall 157 15.2
    Other 77 7.4
Injury Severity Score
    Minimum 77 7.5
    Moderate 298 28.8
    Severe 457 44.2
    Serious 138 13.4
    Critical 63 6.1