Table 1 Descriptive statistics of individuel-level variables in the study sample stratified by age groups and sex
Variables | Mean (SD)/N (%) | ||
|---|---|---|---|
School children | |||
All (n = 300) | Boys (n = 137) | Girls (n = 163) | |
MVPA (min/day) | 61.9 (23.0) | 69.8 (24.3) | 55.3 (19.5) |
Age | 7(0.8).5 | 7.5 (0.8) | 7.5 (0.8) |
BMI z-score\(^{\rm a}\) | 0.42 (1.0) | 0.29 (1.0) | 0.52 (1.1) |
Valid weartime | 11.6(1.3) | 11.7 (1.4) | 11.5 (1.2) |
ISCED level (%) | |||
 Low | 69 (23.0) | 28 (20.4) | 41 (25.2) |
 Medium | 168 (56.0) | 81 (59.1) | 87 (53.4) |
 High | 63 (21.0) | 28 (20.4) | 35 (21.5) |
Safety concerns of parents (%) | |||
 No | 194 (64.7) | 87 (63.5) | 107 (65.6) |
 Yes | 106 (35.3) | 50 (36.5) | 56 (34.4) |
Season of assessment (%) | Â | Â | Â |
 Autumn/winter | 213 (71.0) | 97 (70.8) | 116 (71.2) |
 Spring/summer | 87 (29.0) | 40 (29.2) | 47 (28.8) |
| Â | Pre-school children | Â | Â |
|---|---|---|---|
| Â | All (n = 100) | Boys (n = 57) | Girls (n = 43) |
MVPA (min/day) | 55.8 (22.9) | 58.1 (23.0) | 52.7 (22.7) |
Age | 4.2 (0.8) | 4.2 (0.8) | 4.2 (0.9) |
BMI z-score\(^{\rm a}\) | 0.03 (1.1) | –0.10 (1.1) | 0.19 (1.2) |
Valid weartime | 11.1 (1.1) | 11.3 (1.1) | 10.9 (1.0) |
ISCED level (%) | Â | Â | Â |
 Low | 13 (13.0) | 10 (17.5) | 3 (7.0) |
 Medium | 72 (72.0) | 37 (64.9) | 35 (81.4) |
 High | 15 (15) | 10 (17.5) | 5 (11.6) |
Safety concerns of parents (%) | |||
 No | 53 (53.0) | 35 (61.4) | 18 (41.9) |
 Yes | 47 (47.0) | 22 (38.6) | 25 (58.1) |
Season of assessment (%) | |||
 Autumn/winter | 70 (70.0) | 42 (73.7) | 28 (65.1) |
 Spring/summer | 30 (30.0) | 15 (26.3) | 15 (34.9) |