Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

181 questions · 186 findings · 22 reviews

No studies found 27 · 14.5%GRADE not reported 31 · 16.7%Very low 75 · 40.3%Low 22 · 11.8%Moderate 21 · 11.3%High 10 · 5.4%

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

Group C cognitive behavioural therapy: cognitive behavioural therapy + risperidone 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