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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,589 questions in 168 reviews · Schizophrenia

current versions
No studies 601 · 23.2%Ungraded 446 · 17.2%Very low 721 · 27.8%Low 505 · 19.5%Moderate 274 · 10.6%High 42 · 1.6%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
CHLORPROMAZINE vs PLACEBO
Behaviour: deteriorated/ disturbed/un‐cooperative · patients with schizophrenia
Chlorpromazine versus placebo for schizophrenia (2014) · Cochrane
RR 0.49 [0.24, 1]8 studies · 1040 participantsVery low
CHLORPROMAZINE vs PLACEBO
Cost of care ‐ not reported · patients with schizophrenia
Chlorpromazine versus placebo for schizophrenia (2014) · Cochrane
no estimate extractedNRNo studies
SHORT vs LONG HOSPITAL STAY
Death ‐ 2 years · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 0.42 [0.1, 1.83]1 study · 175 participantsVery low
SHORT vs LONG HOSPITAL STAY
No clinically important changes in specific symptoms ‐ positive and negative symptoms of schizophrenia (long term) Mental state: Not improved ‐ by 2 years ‐ as measured by PEF scale PEF scale · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 3.39 [0.76, 15.02]1 study · 61 participantsVery low
SHORT vs LONG HOSPITAL STAY
Service outcomes: 1a. Readmission to hospital (homogeneous studies) long term Number of participants readmitted to hospital · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 1.26 [1, 1.57]4 studies · 651 participantsLow
SHORT vs LONG HOSPITAL STAY
Service outcomes: 3. Leaving hospital prematurely ‐ by 2 years Participants leaving the study prematurely · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 0.77 [0.34, 1.77]2 studies · 229 participantsLow
SHORT vs LONG HOSPITAL STAY
Service outcomes: 4. Discharge delayed beyond the time planned in study ‐ 2‐year data Number of participants kept beyond projected time of discharge · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 0.54 [0.33, 0.88]3 studies · 404 participantsLow
SHORT vs LONG HOSPITAL STAY
Leaving the study early (long term) Participants leaving the study prematurely · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 1.07 [0.7, 1.62]3 studies · 404 participantsLow
SHORT vs LONG HOSPITAL STAY
General functioning: Unemployed, unable to housekeep or unknown employment status ‐ by 2 years Number of participants with poor occupational functioning in 2 years · patients with people with severe mental illness
Length of hospitalisation for people with severe mental illness (2014) · Cochrane
RR 0.61 [0.5, 0.76]2 studies · 330 participantsVery low
Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics
Acceptability of treatment Leaving the study early due to any reason · People with schizophrenia
Carbamazepine for schizophrenia (2014) · Cochrane
RR 0.47 [0.16, 1.35]8 studies · 182 participantsVery low
Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics
No clinically important change in general mental state Scale used: less than 50% BPRS reduction · People with schizophrenia
Carbamazepine for schizophrenia (2014) · Cochrane
RR 0.86 [0.67, 1.12]6 studies · 147 participantsLow
Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics
Average endpoint general mental state score Scale used: Average BPRS endpoint score. Scale from: 0 to 108. · People with schizophrenia
Carbamazepine for schizophrenia (2014) · Cochrane
no estimate extracted3 studies · 79 participantsLow
Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics
Average endpoint positive symptom score Scale used: Mean PANSS positive subscore at endpoint. Scale from: 7 to 49. · People with schizophrenia
Carbamazepine for schizophrenia (2014) · Cochrane
no estimate extracted1 study · 18 participantsModerate
Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics
Average endpoint depressive symptom score Scale used: Hamilton scale at endpoint. Scale from: 0 to 54. · People with schizophrenia
Carbamazepine for schizophrenia (2014) · Cochrane
no estimate extracted1 study · 26 participantsLow
Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics
Aggression · People with schizophrenia
Carbamazepine for schizophrenia (2014) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Clinical response: mental state ‐ relapse ‐ medium term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Clinical response: global state ‐ no clinical improvement ‐ short term Rates of improvement · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 0.67 [0.36, 1.23]1 study · 36 participantsLow
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Service utilisation: hospital admission ‐ medium/long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Leaving the study early ‐ short/medium term Rate of attrition · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 1.23 [0.76, 1.99]4 studies · 161 participantsLow
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Adverse effects: general ‐ movement disorders ‐ requiring anticholinergic medication ‐ short/medium term Numbers requiring anticholinergic medication · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 1.38 [0.75, 2.52]3 studies · 102 participantsLow
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Economic outcomes ‐ long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Clinical response: mental state ‐ relapse ‐ medium term Relapse rate · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 1 [0.27, 3.69]1 study · 18 participantsLow
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Clinical response: mental state ‐ general score ‐ medium term Brief Psychiatric Rating Scale (BPRS). Scale from: 0 to 126. · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extracted1 study · 18 participantsLow
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Clinical response: global state ‐ no clinical improvement ‐ short/medium term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Service utilisation: hospital admission ‐ medium/long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Leaving the study early ‐ short/medium term Rate of attrition · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 0.16 [0.03, 0.82]2 studies · 42 participantsLow
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Clinical response: mental state ‐ general score ‐ medium term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Adverse effects: general ‐ movement disorders ‐ requiring anticholinergic medication ‐ short term numbers requiring anticholinergic medication · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extracted2 studies · 47 participantsVery low
FLUPENTHIXOL DECANOATE HIGH DOSE vs FLUPENTHIXOL DECANOATE STANDARD DOSE (˜40 mg/IM)
Economic outcomes ‐ long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Clinical response: mental state ‐ relapse ‐ medium term Relapse rate · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 0.34 [0.1, 1.15]1 study · 59 participantsLow
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Clinical response: mental state ‐ general score (BPRS) ‐ skew ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Clinical response: global state ‐ no clinical improvement ‐ short/medium term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Service utilisation: hospital admission ‐ medium/long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Leaving the study early ‐ medium/long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Adverse effects: general ‐ movement disorders ‐ requiring anticholinergic medication ‐ short/medium term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE VERY LOW (˜6 mg/IM) DOSE vs FLUPENTHIXOL DECANOATE LOW DOSE (˜9 mg/IM)
Economic outcomes ‐ long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Clinical response: global state ‐ no clinical improvement ‐ medium term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Service utilisation: hospital admission ‐ medium/long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Leaving the study early ‐ short term Rate of attrition · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 3 [0.33, 27.23]1 study · 60 participantsVery low
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Adverse effects: general ‐ movement disorders ‐ requiring anticholinergic medication ‐ short term Numbers requiring anticholinergic medication · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 1.19 [0.77, 1.83]1 study · 60 participantsVery low
FLUPENTHIXOL DECANOATE vs ORAL ANTIPSYCHOTICS
Economic outcomes ‐ long term ‐ not reported · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extractedNRNo studies
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Clinical response: mental state ‐ relapse ‐ medium term Relapse rate · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
RR 1.3 [0.87, 1.93]5 studies · 221 participantsLow
FLUPENTHIXOL DECANOATE vs OTHER DEPOT ANTIPSYCHOTICS
Clinical response: mental state ‐ general score ‐ skew Brief Psychiatric Rating Scale (BPRS) · patients with schizophrenia or other similar psychotic disorders
Flupenthixol decanoate (depot) for schizophrenia or other similar psychotic disorders (2014) · Cochrane
no estimate extracted0 studies · 1 participantsVery low
Perazine vs placebo
Acceptability of treatment Leaving the study early due to any reason · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
RR 0.62 [0.35, 1.1]1 study · 95 participantsVery low
Perazine vs other antipsychotics
Movement disorders number of participants receiving antiparkinson medication · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
RR 1.21 [0.53, 2.76]2 studies · 81 participantsVery low
Perazine vs other antipsychotics
Overall tolerability Leaving the study early due to adverse events · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
RR 0.87 [0.4, 1.9]5 studies · 193 participantsLow
Perazine vs other antipsychotics
Acceptability of treatment Leaving the studies early due to any reason · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
RR 0.97 [0.68, 1.38]6 studies · 384 participantsLow
Perazine vs other antipsychotics
Satisfaction with care ‐ not reported · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
no estimate extractedNRNo studies
Perazine vs other antipsychotics
Quality of life ‐ not reported · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
no estimate extractedNRNo studies
Perazine vs placebo
Global state change over time (no better or deterioration) · patients with schizophrenia
Perazine for schizophrenia (2014) · Cochrane
RR 0.43 [0.23, 0.81]1 study · 95 participantsLow