BMI z-score at baseline and at the end of intervention in the intervention and control groups
| Baseline Mean (95% CI) | End of study Mean (95% CI) | Change Mean (95% CI) | Baseline to study end p Value* | Intervention vs control p Value† | |
|---|---|---|---|---|---|
| BMI z-score | |||||
| Intervention | |||||
| Boys | 0.73 (0.53 to 0.94) | 0.74 (0.54 to 0.93) | 0.00 (−0.07 to 0.08) | 0.973 | 0.381 |
| Girls | 0.71 (0.50 to 0.91) | 0.89 (0.68 to 1.10) | 0.18 (0.10 to 0.26) | <0.001 | 0.030 |
| Total | 0.72 (0.58 to 0.86) | 0.81 (0.67 to 0.95) | 0.09 (0.03 to 0.14) | 0.002 | 0.400 |
| Control | |||||
| Boys | 0.83 (0.64 to 1.01) | 0.81 (0.63 to 1.00) | −0.12 (−0.08 to 0.06) | 0.726 | |
| Girls | 0.52 (0.33 to 0.71) | 0.63 (0.44 to 0.83) | 0.11 (0.02 to 0.20) | 0.013 | |
| Total | 0.68 (0.55 to 0.82) | 0.73 (0.60 to 0.86) | 0.05 (−0.01 to 0.10) | 0.100 | |
Differences between intervention and control preintervention versus postintervention.
*p Value: mixed models repeated measures.
†p Value: analysis of variance (ANOVA) model.
BMI, body mass index.