Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

364 questions · 388 findings · 28 reviews · Headline outcomes only

No studies found 15 · 3.9%GRADE not reported 20 · 5.2%Very low 133 · 34.3%Low 161 · 41.5%Moderate 58 · 14.9%High 1 · 0.3%

Non‐trauma‐focused psychological intervention for PTSD and SUD or PTSD only vs psychological interventions

Drug or alcohol use, or both following treatment completion ‐ Individual‐based intervention · Individuals with post‐traumatic stress disorder and comorbid substance use disorder
1 finding from 1 review

Non‐trauma‐focused psychological intervention for PTSD and SUD or PTSD only vs psychological interventions

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

It is very uncertain whether non‐trauma‐focused psychological intervention for PTSD and SUD or… changes treatment completers compared with active psychological intervention (very low certainty).

1 finding from 1 review