Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

556 questions · 586 findings · 44 reviews · Common Mental Disorders

No studies found 149 · 25.4%GRADE not reported 19 · 3.2%Very low 180 · 30.7%Low 160 · 27.3%Moderate 66 · 11.3%High 12 · 2%

Trauma‐focused psychological intervention vs psychological interventions

Treatment completers · Individuals with post‐traumatic stress disorder and comorbid substance use disorder

Trauma‐focused psychological intervention showed no clear difference in treatment completers compared with active psychological intervention (low certainty).

1 finding from 1 review

Brief psychotherapeutic intervention vs usual care

Reduction in physical signs As assessed by SDQ‐20 (lower is better) · people with conversion disorder according to DSM‐IV or ICD‐10 criteria

It is very uncertain whether brief psychotherapeutic intervention changes reduction in physical signs As assessed by SDQ‐20 (lower is better) compared with standard care (very low certainty).

1 finding from 1 review

Any early psychological intervention vs inactive control (usual care care, attention control, waitlist)

Diagnosis of PTSD after treatment · various

It is very uncertain whether any early psychological intervention changes PTSD diagnosis: post‐treatment compared with waiting list/usual care (very low certainty).

1 finding from 1 review