Medically treated injury in the past 12 months (%) | 49.8 | 33.4 | 62.1 | 39.2 | 23.3 | 50.1 |
By location (% of injured) | | | | | | |
Home or yard | 20.8 | 11.6 | 36.3 | 28.5 | 19.1 | 38.7 |
School or school grounds | 22.8 | 14.4 | 32.4 | 23.1 | 16.2 | 37.9 |
Sports facilities or field | 25.0 | 15.7 | 34.1 | 15.5 | 6.5 | 30.1 |
Street, road, or parking lot | 11.2 | 8.0 | 18.8 | 10.2 | 5.5 | 15.1 |
By activity (% of injured) | | | | | | |
Playing or training for a sport or recreational activity | 40.5 | 31.9 | 55.4 | 37.0 | 19.0 | 59.1 |
Physical fight | 7.2 | 4.2 | 8.1 | 3.6 | 1.7 | 4.7 |
Primary social risk factors | | | | | | |
Socio-economic status | | | | | | |
Family Affluence Scale (FAS): (% low: (FAS 0–3)) | 30.3 | 10.3 | 49.6 | 36.5 | 10.9 | 61.5 |
Go to bed or school hungry (% always/often) | 2.9 | 2.3 | 6.9 | 1.9 | 1.1 | 3.5 |
Social behaviour | | | | | | |
Drunkenness in lifetime (% 4 or more times) | 7.8 | 4.6 | 15.9 | 4.2 | 1.5 | 9.1 |
A priori confounders | | | | | | |
Age (years) | 13 | 10 | 17 | 13 | 10 | 17 |
Weekly physical activity (mean days per week) | 4.0 | 3.5 | 5.0 | 3.5 | 3.0 | 4.0 |