Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

479 questions · 510 findings · 52 reviews

No studies found 99 · 19.4%GRADE not reported 64 · 12.5%Very low 144 · 28.2%Low 146 · 28.6%Moderate 57 · 11.2%High 0 · 0%

Group C cognitive behavioural therapy: cognitive behavioural therapy + placebo vs placebo or supportive treatment

Prodromal symptoms: transition to psychosis Endpoint data (events) · people in the prodromal stage of psychosis

It is very uncertain whether group C cognitive behavioural therapy: cognitive behavioural therapy… changes prodromal symptoms: transition to psychosis Endpoint data (events) compared with supportive therapy + placebo (very low certainty).

1 finding from 1 review

Group C cognitive behavioural therapy: cognitive behavioural therapy + placebo vs placebo or supportive treatment

Adverse effects: specific ‐ doctors' assessment of adverse effects UKU (events) Medium‐term · people in the prodromal stage of psychosis

It is very uncertain whether group C cognitive behavioural therapy: cognitive behavioural therapy… changes adverse effects: specific ‐ doctors' assessment of adverse effects… compared with supportive therapy + placebo (very low certainty).

1 finding from 1 review

Group C cognitive behavioural therapy: cognitive behavioural therapy + placebo vs placebo or supportive treatment

Satisfaction with treatment: leaving the study early Endpoint data (events) · people in the prodromal stage of psychosis

It is very uncertain whether group C cognitive behavioural therapy: cognitive behavioural therapy… changes satisfaction with treatment: leaving the study early Endpoint data… compared with supportive therapy + placebo (very low certainty).

1 finding from 1 review

CBT plus standard care vs usual care

Global state: 2. Clinically important change (no improvement) ‐ long term · patients with schizophrenia

It is very uncertain whether COMPARISON 1: CBT+ STANDARD CARE changes global state: 2. Clinically important change (no improvement) ‐ long… compared with STANDARD CARE ALONE (very low certainty).

1 finding from 1 review

CBT plus standard care vs usual care

Mental state: General ‐ clinically important change (no improvement) · patients with schizophrenia

It is very uncertain whether COMPARISON 1: CBT+ STANDARD CARE changes mental state: General ‐ clinically important change (no improvement)… compared with STANDARD CARE ALONE (very low certainty).

1 finding from 1 review

CBT plus standard care vs usual care

Adverse events experienced at short or long term ‐ general adverse events 24 weeks' · patients with schizophrenia

It is very uncertain whether COMPARISON 1: CBT+ STANDARD CARE changes adverse events: General: any adverse event compared with STANDARD CARE ALONE (very low certainty).

1 finding from 1 review

CBT plus standard care vs usual care

Satisfaction with treatment: 1. Leaving the study early ‐ long term · patients with schizophrenia

COMPARISON 1: CBT+ STANDARD CARE showed no clear difference in satisfaction with treatment: 1. Leaving the study early ‐ long term compared with STANDARD CARE ALONE (moderate certainty).

1 finding from 1 review