Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,320 questions · 4,561 findings · 388 reviews

No studies found 1,138 · 25%GRADE not reported 886 · 19.4%Very low 1,014 · 22.2%Low 849 · 18.6%Moderate 543 · 11.9%High 131 · 2.9%

Internet‐based cognitive and behavioural therapy (I‐C/BT) vs WAIT LIST

Diagnosis of PTSD after treatment · adults aged ≥ 16 years with PTSD

It is very uncertain whether internet‐based cognitive and behavioural therapy (I‐C/BT) changes diagnosis of PTSD after treatment compared with wait list (very low certainty).

1 finding from 1 review

Internet‐based cognitive and behavioural therapy (I‐C/BT) vs I‐non‐C/BT

Leaving the study early · adults aged ≥ 16 years with PTSD

It is very uncertain whether internet‐based cognitive and behavioural therapy (I‐C/BT) changes dropouts compared with I‐non‐C/BT (very low certainty).

1 finding from 1 review

Internet‐based cognitive and behavioural therapy (I‐C/BT) vs face‐to‐face non‐CBT

Leaving the study early · adults aged ≥ 16 years with PTSD

It is very uncertain whether internet‐based cognitive and behavioural therapy (I‐C/BT) changes dropouts compared with face‐to‐face non‐CBT (very low certainty).

1 finding from 1 review