Table 2 Background characteristics of the students responding to the baseline questionnaire in the intervention (INT) and comparison (COM) group. Means and standard deviations (SD) or numbers (n) and proportions (%)
INT (n = 651) | COM (n = 825) | |
|---|---|---|
Age (years), mean (SD) | 13.9 (0.5) | 13.9 (0.5) |
Girls, n (%) | 314 (48.2) | 391 (47.4) |
Body mass indexa), mean (SD) | 19.8 (2.7) | 19.8 (2.8) |
• > 25 kg/m2, n (%) | 62 (12.5) | 80 (12.5) |
Self-rated fitness, n (%) | ||
• Better than peers | 198 (35.6) | 242 (32.8) |
• Equal to peers | 235 (42.3) | 322 (43.8) |
• Worse than peers | 123 (22.1) | 172 (23.4) |
Distance from home to school, mean (SD) | 4.5 (5.5) | 4.2 (4.8) |
• < 1 km, n (%) | 68 (12.5) | 116 (15.8) |
• 1–3 km | 287 (52.7) | 328 (44.8) |
• > 3 ≤ 5 km | 53 (9.7) | 93 (12.7) |
• > 5 km | 137 (25.1) | 195 (26.6) |
Main residency, n (%) | ||
• Apartment house | 171 (30.5) | 235 (31.7) |
• Detached house | 209 (37.3) | 286 (38.5) |
• Row house or semi-detached house | 153 (27.3) | 184 (24.8) |
• Combination of two from the residence types above | 22 (3.9) | 26 (3.5) |
• Other | 5 (0.9) | 11 (1.5) |
Family circumstances, n (%) | 22 (3.9) | 26 (3.5) |
• Living with both parents or in a blended family | 393 (70.2) | 490 (65.9) |
• Living with a single parent (permanently or rotating between parents) | 163 (29.2) | 244 (32.8) |
• Living with another person | 4 (0.7) | 8 (1.1) |
Having a car in the family, n (%) | 513 (91.6) | 675 (91.5) |
• Number of cars, mean (SD) | 1.5 (0.9) | 1.5 (0.8) |
Having a moped, scooter or microcar, n (%) | 54 (9.7) | 67 (9.1) |
Having a rideable bicycle, n (%) | 510 (91.6) | 675 (91.3) |