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. 2023 Oct 24;2023(10):CD014722. doi: 10.1002/14651858.CD014722.pub2

Summary of findings 6. Summary of findings table ‐ Indicated prevention interventions compared to control group in preventing mental disorders in children.

Indicated prevention interventions compared to control group in preventing mental disorders in children
Patient or population: preventing mental disorders
Setting: low‐ and middle‐income countries (China (1 study), Tanzania (1 study), Kenya (1 study), Sri Lanka (1 study), Belize (1 study))
Intervention: indicated prevention interventions
Comparison: control group
Outcomes Anticipated absolute effects* (95% CI) Relative effect
(95% CI) № of participants
(studies) Certainty of the evidence
(GRADE) Comments
Risk with control group Risk with indicated prevention interventions
Diagnosis of mental disorders at study endpoint (RR < 1 denotes lower risk of mental diagnosis) 336 per 1000 259 per 1000
(171 to 393) RR 0.77
(0.51 to 1.17) 220
(1 RCT) ⊕⊝⊝⊝
Very lowa,b,c It is uncertain whether indicated prevention interventions have any effect on the risk of mental disorders in children with a high vulnerability to develop mental disorders (at post‐intervention) compared to usual care.
Quality of life at study endpoint (higher score = better quality of life) SMD 0.65 SD lower
(2.09 lower to 0.79 higher) 152
(2 RCTs) ⊕⊝⊝⊝
Very lowd,e,f Scores estimated based on an SMD of ‐0.65 (95% CI ‐2.09 to 0.79). It is uncertain whether indicated prevention interventions have any effect on quality of life among children with a high vulnerability to develop mental disorders (at post‐intervention) compared with usual care. [There is a small effect according to Cohen 1992]1
Adverse events at study endpoint No studies that measured this outcome were identified.   (0 studies)  
Psychological functioning and impairment at study endpoint (higher score = higher disability) SMD 0.29 SD lower
(0.47 lower to 0.1 lower) 448
(2 RCTs) ⊕⊕⊕⊕
High Scores estimated based on an SMD of ‐0.29 (95% CI ‐0.47 to ‐0.1). Indicated prevention interventions decrease slightly functional impairment in children with a high vulnerability to develop mental disorders (at post‐intervention) compared to usual care. [There is [a small effect according to Cohen 1992]1
Depressive symptoms at study endpoint (higher score = higher severity) SMD 0.18 SD lower
(0.32 lower to 0.04 lower) 771
(4 RCTs) ⊕⊕⊕⊕
High Scores estimated based on an SMD of ‐0.18 (95% CI ‐0.32 to ‐0.04). Indicated prevention interventions decrease slightly depressive symptoms in children with a high vulnerability to develop mental disorders (at post‐intervention) compared to usual care. [There is a small effect according to Cohen 1992]1
Anxiety symptoms at study endpoint (higher score = higher severity) SMD 0.09 lower
(0.22 lower to 0.04 higher) 888
(3 RCTs) ⊕⊝⊝⊝
Very lowg,h Scores estimated based on an SMD of ‐0.09 (95% CI ‐0.22 to 0.04). It is uncertain whether indicated prevention interventions have any effect on anxiety symptoms in children with a high vulnerability to develop mental disorders (at post‐intervention) compared to usual care. [There is a small effect according to Cohen 1992]1
Distress/PTSD symptoms at study endpoint (higher score = higher severity) SMD 0.24 SD higher
(1.28 lower to 1.76 higher) 448
(2 RCTs) ⊕⊕⊝⊝
Lowi,j Scores estimated based on an SMD of 0.24 (95% CI ‐1.28 to 1.76). Indicated prevention interventions may slightlyreduce distress/PTSD symptoms in children with a high vulnerability to develop mental disorders (at post‐intervention) compared to usual care. [There is a small effect according to Cohen 1992]1
*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).

CI: confidence interval; RR: risk ratio; SMD: standardised mean difference
GRADE Working Group grades of evidenceHigh 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.
See interactive version of this table: https://gdt.gradepro.org/presentations/#/isof/isof_question_revman_web_429913780370754267.

a Downgraded 1 level owing to study limitations (RCT did not provided information about allocation concealment, and outcome assessment was not described as masked)
b Downgraded 1 level owing to indirectness (outcome measures as proxy of depression)
c Downgraded 1 level owing to imprecision (outcome based on wide confidence interval ranging from favouring indicated prevention intervention to no clinical effect)
d Downgraded 2 levels owing to study limitations (over 30% of RCTs had high risk in selection of the reported result)
e Downgraded 1 level owing to indirectness (outcome measures as proxy of quality of life)
f Downgraded 1 level owing to imprecision (outcome based on a small number of participants, less than 200)
g Downgraded 2 levels owing to study limitations (over 30% of RCTs had high risk of bias due to deviations from intended interventions and missing outcome data) 
h Downgraded 1 level owing to indirectness (outcome measures as proxy of anxiety)
i Downgraded 1 level owing to inconsistency (point estimates vary widely across studies)
j Downgraded 1 level owing to imprecision (outcome based on wide confidence interval that included no effect and appreciable benefit and harm)
1 J, Cohen. A power primer. Psychological Bulletin ; 1992.