Table 1.
Description of the study samples (younger children and older children).
| Younger Children (3–10) | Older Children (10–19) | |
|---|---|---|
| Demographics | ||
| n | 389 | 403 a |
| Male (n, %) | 213 (55%) | 216 (54%) |
| Female (n, %) | 176 (45%) | 187 (46%) |
| Age (mean, sd) | 7.54 (1.90) | 13.50 (2.51) |
| SES score (mean, sd) | 16.13 (3.08) | 15.45 (3.18) |
| Low SES (n, %) b | 6 (2%) | 8 (2%) |
| Middle SES (n, %) b | 189 (49%) | 223 (55%) |
| High SES (n, %) b | 194 (49%) | 172 (43%) |
| Local SBR rate (mean, sd) | 10.56 (6.77) | 11.20 (7.92) |
| Percentage green spaces | ||
| Within 50 m of home (mean, sd) | 39.34 (15.68) | 43.48 (15.38) |
| Within 100 m of home (mean, sd) | 43.09 (14.95) | 46.97 (15.31) |
| Within 400 m of home (mean, sd) | 46.43 (13.94) | 50.27 (15.00) |
| Percentage streets | ||
| Within 50 m of home (mean, sd) | 9.58 (4.73) | 8.94 (4.52) |
| Within 100 m of home (mean, sd) | 8.64 (3.65) | 8.35 (3.40) |
| Within 400 m of home (mean, sd) | 8.59 (2.74) | 8.19 (2.88) |
| Outdoor activity | ||
| Summer | ||
| Low/normal (n, %) | 127 (33%) | 188 (47%) |
| High (n, %) | 262 (67%) | 215 (53%) |
| Winter | ||
| Low/normal (n, %) | 247 (63%) | 285 (71%) |
| High (n, %) | 142 (37%) | 118 (29%) |
| Media use | ||
| Total media use (in h (mean, sd)) | 1.69 (1.53) | 5.73 (3.89) |
| Low/normal (n, %) | 202 (52%) | 209 (52%) |
| High (n, %) | 187 (48%) | 194 (48%) |
| BMI/overweight/obesity | ||
| BMI (mean, sd) | −0.06 (0.97) | 0.23 (1.20) |
| Normal weight (n, %) | 349 (90%) | 326 (81%) |
| Overweight/obesity (n, %) | 40 (10%) | 77 (19%) |
| Emotional problems a | ||
| SDQ score (mean, sd) | 1.63 (1.73) | 2.28 (2.10) |
| Low/normal (n, %) | 332 (85%) | 269 (84%) |
| Borderline/abnormal (n, %) | 57 (15%) | 50 (16%) |
a In the sample of older children, information on emotional problems was missing in n = 84 participants, resulting in n = 319 in this subsample. b Based on reference values achieved in a representative German sample [47], the SES score can be used to categorize the SES as low (score ranging between 3 and 8.7), middle (8.8–16.9) or high (17.0–21).