Table 2 Pre-intervention distribution of selected covariates by group
Intervention group | Control group | P (t-test) | |||||
|---|---|---|---|---|---|---|---|
n | Mean | SD | n | Mean | SD | ||
Age (years) | 271 | 4.0 | 1.1 | 272 | 4.0 | 1.1 | 1.00 |
Height (cm) | 271 | 104.3 | 9.2 | 272 | 104.5 | 9.1 | 0.77 |
Weight (kg) | 271 | 17.4 | 3.1 | 272 | 17.6 | 3.0 | 0.45 |
BMI (kg/m 2 ) | 271 | 15.9 | 1.0 | 272 | 16.0 | 1.0 | 0.12 |
Waist circumference (cm) | 253 | 51.8 | 3.2 | 257 | 52.1 | 3.0 | 0.22 |
Hip circumference (cm) | 252 | 55.5 | 3.6 | 255 | 56.0 | 3.9 | 0.19 |
Sum of 4 skinfolds (mm) | 236 | 24.6 | 5.4 | 242 | 24.8 | 5.2 | 0.67 |
Body fat (%) | 199 | 22.3 | 10.1 | 176 | 21.3 | 8.9 | 0.33 |
Energy intake (MJ) | 237 | 4.7 | 1.0 | 244 | 4.8 | 1.0 | 0.15 |
Carbohydrate intake (gr./day) | 237 | 158.0 | 36.0 | 244 | 164.1 | 35.3 | 0.06 |
Protein intake (gr./day) | 237 | 42.8 | 11.2 | 244 | 44.6 | 10.3 | 0.07 |
Fat intake (gr./day) | 237 | 38.1 | 10.1 | 244 | 38.1 | 11.2 | 0.96 |
Sugar intake (gr./day) | 237 | 56.2 | 16.5 | 244 | 58.5 | 16.5 | 0.12 |
Sleep latency (minutes) | 250 | 18.3 | 14.5 | 256 | 18.6 | 13.9 | 0.84 |
SDQ-score (points) | 253 | 7.1 | 3.9 | 256 | 6.4 | 4.0 | 0.05* |
Household income (thousands, DKK) | 217 | 870 | 622 | 231 | 788 | 306 | 0.07 |