Table 1.
Description of the final sample
| N | 654 |
| Male (%) | 48.9 |
| Average age (SD) | 14.1 (+/- 1.2) |
| Western ethnic background (%) | 41.1 |
| Educational level | |
| Vocational education (%) | 53.8 |
| Senior general secondary education (%) | 46.2 |
| Engaging in sports at least three times a week (%) | 62.2 |
| Engaging in walking and cycling during leisure time at least 30 minutes a day (%) | 80.3 |
| Perceived environment | |
| Parks available (% yes) | 73.5 |
| Sports facilities available (% yes) | 73.4 |
| Sidewalks available (% a lot) | 94.3 |
| Bicycle lanes available (% a lot) | 35.5 |
| Objective environment | |
| Availability of parksa (SD) | 0.95 (+/- 0.8) |
| Availability of sports facilitiesa (SD) | 14.7 (+/- 7.5) |
| Availability of sidewalksb (SD) | 13.2 (+/- 5.8) |
| Availability of bicycle lanesb (SD) | 1.1 (+/- 0.5) |
a Number within a radius of 1500 meters of a participants' home; b percentage of neighborhood land area