Summary of findings 14. Adverse event outcomes for dietary combined with physical activity interventions compared to control for preventing obesity in children aged 13 to 18 years.

Adverse events outcomes for dietary combined with physical activity interventions compared to control for preventing obesity in children aged 13 to 18 years
Patient or population: children aged 13‐18 years Setting: school Intervention: diet and physical activity Comparison: control (no intervention or usual care)
Outcomes	Impact	№ of participants (studies)	Certainty of the evidence (GRADE)
Depression Assessed with Child's Depression Inventory	No effects of the intervention on depression	779 (1 RCT)	⊕⊕⊕⊕ High
Clinical levels of shape and weight concern	No effect of intervention on clinical numbers of shape or weight concern	282 (1 RCT)	⊕⊕⊝⊝ Low1,2
Anxiety Assessed with anxiety scale	No effect of the intervention on anxiety	779 (1 RCT)	⊕⊕⊕⊕ High
RCT: randomised controlled trial
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.

¹Downgraded for risk of bias because these data appear to be from a post hoc subgroup analysis.
²Downgraded for imprecision as the number of participants was small.