| Diet and physical activity interventions combined compared to physical activity interventions alone for preventing obesity in children aged 6 to 12 years |
|
Patient or population: children aged 6‐12 years
Setting: school
Intervention: combined diet and physical activity interventions
Comparison: physical activity interventions alone |
| Outcomes |
Anticipated absolute effects* (95% CI) |
№ of participants
(studies) |
Certainty of the evidence
(GRADE) |
Comments |
| Risk with physical activity interventions |
Risk with diet and physical activity interventions combined |
|
Body‐mass index (BMI) |
The mean BMI was 17.7 kg/m2
|
MD 0.04 kg/m2 lower (1.05 lower to 0.97 higher) |
3946
(1 RCT) |
⊕⊕⊕⊕
High |
Combined dietary and physical activity interventions result in little to no difference in BMI compared to physical activity interventions when delivered in schools to children aged 6‐12 years |
|
Body‐mass index z score (zBMI) |
The mean zBMI was 0.15 |
MD 0.16 lower (0.57 lower to 0.25 higher) |
3946
(1 RCT) |
⊕⊕⊕⊕
High |
Combined dietary and physical activity intrventions result in little to no difference in zBMI compared to physical activity interventions when delivered in schools to children aged 6‐12 years |
| *The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
BMI: body‐mass index; CI: confidence interval; MD: mean difference; RCT: randomised controlled trial; zBMI: body‐mass index z score |
|
GRADE Working Group grades of evidence
High certainty: we are very confident that the true effect lies close to that of the estimate of the effect.
Moderate certainty: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low certainty: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low certainty: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect. |
