Table 4.
Effects of the intervention on BMI sds at T2 and T3
| T2 | T3 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | b | p | 95 % CI | Between school class variance σ2u (s.e.) | n | b | p | 95 % CI | Between school class variance σ2u (s.e.) | |
| BMI sdsa | 332 | −0.03 | 0.46 | −0.1 to 0.1 | 0.00 (0.00) | 318 | 0.013 | 0.79 | −0.1 to 0.1 | 0.08 (0.04) |
| BMI sdsa in overweight/obeseb children at T1 | 84 | −0.02 | 0.75 | −0.2 to 0.1 | 0.02 (0.10) | 82 | 0.02 | 0.85 | −0.2 to 0.2 | 0.14 (0.02) |
| BMI sdsa in overweightb children at T1 | 47 | 0.12 | 0.23 | −0.1 to 0.3 | 0.11 (0.02) | 47 | 0.13 | 0.22 | −0.1 to 0.3 | 0.13 (0.03) |
| BMI sdsa in obeseb children at T1 | 37 | −0.21 | 0.03 | −0.4 to -0.02 | 0.00 (0.00) | 35 | −0.05 | 0.79 | −0.4 to 0.3 | 0.26 (0.06) |
Results of Mixed Linear Regression adjusted for sex, parental education and baseline value
b = Regression coefficient (beta), p = between intervention and control groups, CI = 95 % confidence interval
Subjects are dependent observations between T1 and T2 and between T1 and T3
aDefined according to Karlberg et al. 2001
bDefined according to Cole et al. 2012