Table 1. Demographic characteristics of study participants, Adelaide, Australia (June 2007–August 2008).
| Characteristics | n = 1237 (%) |
| Age | |
| ≤5 years | 132 (11) |
| >5 to ≤15 years | 489 (40) |
| >15 years | 616 (50) |
| Sex | |
| Male | 626 (51) |
| Female | 611 (49) |
| Educational status | |
| Currently attending an educational institution | |
| Attending childcare/preschool | 98 (8) |
| Primary | 406 (33) |
| Secondary | 139 (11) |
| College/university | 31 (3) |
| Education completeda | |
| Primary | 7 (1) |
| Secondary/commercial/technical | 250 (20) |
| College/university | 273 (22) |
aData missing for 38 (3%) participants.