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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
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + PLACEBO
Adverse effects: extrapyramidal adverse effects Parkinsonism medium term (3‐12 months) Extrapyramidal Symptom Rating Scale (ESRS) · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extracted1 study · 53 participantsLow
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + PLACEBO
Quality of life: average change score medium term (3‐12 months) Specific Level of Functioning scale (SLOF) · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extracted1 study · 53 participantsLow
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + ANTIPSYCHOTIC
Global state: relapse medium term (3‐12 months) not reported · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extractedNRNo studies
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + ANTIPSYCHOTIC
Mental state: no improvement medium term (3‐12 months) not reported · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extractedNRNo studies
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + ANTIPSYCHOTIC
Mental state: presence of first‐rank symptoms medium term (3‐12 months) not reported · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extractedNRNo studies
PIMOZIDE vs PLACEBO
Mental state: specific symptoms first‐rank symptoms medium term (3‐12 months) not reported · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extractedNRNo studies
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + ANTIPSYCHOTIC
Adverse effects: extrapyramidal adverse effects Parkinsonism (rigidity) short term (< 3 months) Extrapyramidal Symptom Rating Scale (ESRS) · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extracted1 study · 20 participantsVery low
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + ANTIPSYCHOTIC
Adverse effects: extrapyramidal adverse effects Parkinsonism (tremor) short term (< 3 months) Extrapyramidal Symptom Rating Scale (ESRS) · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extracted1 study · 20 participantsVery low
PIMOZIDE + ANY ANTIPSYCHOTIC vs ANTIPSYCHOTIC + ANTIPSYCHOTIC
Quality of life: average change score medium term (3‐12 months) not reported · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extractedNRNo studies
PIMOZIDE vs PLACEBO
Adverse effects: extrapyramidal adverse effects: Parkinsonism (rigidity) short term (<3 months) Clinical diagnoses · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
RR 5.5 [0.3, 101.28]1 study · 19 participantsVery low
PIMOZIDE vs PLACEBO
Adverse effects: extrapyramidal adverse effects:Parkinsonism (rigidity) medium term (3‐12 months) Clinical diagnoses · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
RR 1.33 [0.14, 12.82]1 study · 25 participantsVery low
PIMOZIDE vs PLACEBO
Adverse effects: extrapyramidal adverse effects:Parkinsonism (tremor) medium term (3‐12 months) Clinical diagnoses · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
RR 1 [0.2, 4.95]1 study · 25 participantsVery low
PIMOZIDE vs PLACEBO
Quality of life: no significant change in quality of life/satisfaction medium term (3‐12 months) not reported · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
no estimate extractedNRNo studies
PIMOZIDE vs ANY ANTIPSYCHOTIC
Global state: relapse medium term (3‐12 months) Clinical diagnoses · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
RR 0.82 [0.57, 1.17]7 studies · 227 participantsModerate
PIMOZIDE vs ANY ANTIPSYCHOTIC
Mental state: no improvement medium term (3‐12 months) As defined in each study · patients with schizophrenia or related psychoses
Pimozide for schizophrenia or related psychoses (2013) · Cochrane
RR 1.09 [0.08, 15.41]1 study · 23 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Leaving the study early (2‐10 weeks) vs. standard higher dose (> 7.5‐15 mg/day) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 0.12 [0.01, 2.12]2 studies · 64 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Leaving the study early (2‐10 weeks) vs. high dose (> 15‐35 mg/day) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 0.78 [0.47, 1.28]4 studies · 191 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Global state: 1. No clinically significant response in global state (2‐10 weeks) vs. standard higher dose (> 7.5‐15 mg/day) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 1.09 [0.67, 1.75]1 study · 48 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Global state: 1. No clinically significant response in global state (2‐10 weeks) vs. high dose (> 15‐35 mg/day) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 0.95 [0.75, 1.19]2 studies · 81 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Adverse effects: 1. Clinically significant extrapyramidal side effects (2‐10 weeks) vs. standard higher dose (> 7.5‐15 mg/day) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 0.12 [0.01, 2.12]2 studies · 64 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Adverse effects: 1. Clinically significant extrapyramidal side effects (2‐10 weeks) vs. high dose (> 15‐35 mg/day) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 0.59 [0.45, 0.78]3 studies · 144 participantsVery low
STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES
Mental state/behaviour: clinically significant agitation (2‐10 weeks) · people with the acute phase of schizophrenia
Haloperidol dose for the acute phase of schizophrenia (2013) · Cochrane
RR 0.93 [0.69, 1.26]1 study · 65 participantsVery low
HALOPERIDOL vs PLACEBO
Death ‐ suicide and natural causes · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
HALOPERIDOL vs PLACEBO
Overall improvement: No marked global improvement Rated by clinician · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
RR 0.67 [0.58, 0.78]8 studies · 307 participantsModerate
HALOPERIDOL vs PLACEBO
Not discharged from hospital · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
RR 0.85 [0.47, 1.52]1 study · 33 participantsVery low
HALOPERIDOL vs PLACEBO
Relapse · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
RR 0.69 [0.55, 0.86]2 studies · 70 participantsVery low
HALOPERIDOL vs PLACEBO
Leaving the study early · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
RR 0.54 [0.29, 1]8 studies · 304 participantsModerate
HALOPERIDOL vs PLACEBO
Satisfaction with treatment · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
HALOPERIDOL vs PLACEBO
Adverse effects: Movement disorders ‐ parkinsonism · patients with schizophrenia
Haloperidol versus placebo for schizophrenia (2013) · Cochrane
RR 5.48 [2.68, 11.22]5 studies · 485 participantsModerate
Early warning signs training and treatment as usual vs treatment
Relapse: Rate of relapse · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
RR 0.53 [0.36, 0.79]15 studies · 1502 participantsVery low
Early warning signs training and treatment as usual vs treatment
Relapse: Time to relapse · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
HR 0.53 [0.27, 1.06]6 studies · 550 participantsVery low
Early warning signs training and treatment as usual vs treatment
Service use: Rate of re‐hospitalisation · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
RR 0.48 [0.35, 0.66]15 studies · 1457 participantsVery low
Early warning signs training and treatment as usual vs treatment
Service use: Time to re‐hospitalisation · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
HR 0.58 [0.33, 1.04]6 studies · 1149 participantsVery low
Early warning signs training and treatment as usual vs treatment
Satisfaction with care · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
no estimate extracted3 studies · 3 participantsVery low
Early warning signs training and treatment as usual vs treatment
Adverse events: Lost to · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
RR 0.96 [0.72, 1.28]17 studies · 1495 participantsVery low
Early warning signs training and treatment as usual vs treatment
Economic burden (cost of care) · patients with schizophrenia
Training to recognise the early signs of recurrence in schizophrenia (2013) · Cochrane
no estimate extracted2 studies · 129 participantsVery low
ANY INTERMITTENT DRUG TECHNIQUE vs MAINTENANCE THERAPY
Relapse: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
RR 2.46 [1.7, 3.54]7 studies · 436 participantsModerate
INTERMITTENT (EARLY‐BASED) vs MAINTENANCE THERAPY
Global state: average score: long term (+ 26 weeks) Global Assessment Scale (GAS). Scale from: 0 to 100. · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted2 studies · 82 participantsLow
INTERMITTENT (EARLY‐BASED) vs MAINTENANCE THERAPY
Mental state: average score: long term (+ 26 weeks) Brief Psychiatric Rating Scale (BPRS). Scale from: 0 to 126. · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted1 study · 26 participantsVery low
INTERMITTENT (EARLY‐BASED) vs MAINTENANCE THERAPY
Adverse effects: tardive dyskinesia: long term (+26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
RR 0.56 [0.19, 1.7]1 study · 30 participantsLow
INTERMITTENT (EARLY‐BASED) vs MAINTENANCE THERAPY
Economic outcomes: cost effectiveness: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
INTERMITTENT (EARLY‐BASED) vs MAINTENANCE THERAPY
Leaving the study early/loss to · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
RR 1.67 [1.17, 2.37]5 studies · 562 participantsLow
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Relapse: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Hospitalisation: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Global state: average score: long term (+ 26 weeks) Global Assessment Scale (GAS). Scale from: 0 to 100. · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Mental state: average score: long term (+ 26 weeks) Brief Psychiatric Rating Scale (BPRS). Scale from: 0 to 126. · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Adverse effects: tardive dyskinesia: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
ANY INTERMITTENT DRUG TECHNIQUE vs MAINTENANCE THERAPY
Hospitalisation: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
RR 1.65 [1.33, 2.06]5 studies · 626 participantsModerate
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Economic outcomes: cost effectiveness: long term (+ 26 weeks) as defined in each study · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
INTERMITTENT (CRISIS INTERVENTION) vs MAINTENANCE THERAPY
Leaving the study early/ loss to · patients with schizophrenia
Intermittent drug techniques for schizophrenia (2013) · Cochrane
RR 1.57 [1.23, 2]1 study · 237 participantsVery low