Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

322 questions · 328 findings · 82 reviews

No studies found 97 · 29.6%GRADE not reported 23 · 7%Very low 101 · 30.8%Low 68 · 20.7%Moderate 33 · 10.1%High 6 · 1.8%

PERPHENAZINE vs antipsychotics

Adverse events: extrapyramidal adverse effects ‐ dystonia ‐ short term · patients with schizophrenia

It is very uncertain whether PERPHENAZINE changes adverse events: extrapyramidal adverse effects dystonia ‐ short term compared with ANY ANTIPSYCHOTICS (very low certainty).

1 finding from 1 review

PERPHENAZINE vs antipsychotics

Service use and hospitalisation: admission ‐ not reported · patients with schizophrenia

The review found no eligible studies for this question.

1 finding from 1 review

PERPHENAZINE vs antipsychotics

Global state: Change over time ‐ no better or deterioration ‐ short and medium term as defined in each study · patients with schizophrenia

It is very uncertain whether PERPHENAZINE changes global state: Change over time ‐ no better or deterioration ‐ short… compared with ANY ANTIPSYCHOTICS (very low certainty).

1 finding from 1 review

PERPHENAZINE vs antipsychotics

Mental state: State ‐ 'no effect' BPRS score reduction · patients with schizophrenia

It is very uncertain whether PERPHENAZINE changes mental state: State ‐ 'no effect' BPRS score reduction compared with ANY ANTIPSYCHOTICS (very low certainty).

1 finding from 1 review