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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
Skills training vs standard care
Adverse event: Death · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
RR 0.151 study · 121 participantsLow
Skills training vs standard care
Substance use: Alcohol (C‐DIS‐R average score) · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Skills training vs standard care
Substance use: Drug (non‐alcohol) (C‐DIS‐R average score) · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Integrated models of care vs standard care
Substance use: any change ‐ Drug use (not in remission) · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
RR 0.89 [0.63, 1.25]1 study · 85 participantsLow
Skills training vs standard care
Mental state · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Skills training vs standard care
Social functioning*: Role Functioning Scale: scale 1 to 7 · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 47 participantsVery low
Skills training vs standard care
Quality of life/life satisfaction ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + motivational interviewing vs standard care
Leaving the study early: Lost to treatment · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
RR 0.99 [0.62, 1.59]1 study · 327 participantsLow
Cognitive behavioural therapy + motivational interviewing vs standard care
Adverse event: Death · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
RR 0.6 [0.2, 1.76]4 studies · 603 participantsLow
Cognitive behavioural therapy + motivational interviewing vs standard care
Substance use: Alcohol ( Estimated daily consumption in previous month) · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 46 participantsUngraded
Cognitive behavioural therapy + motivational interviewing vs standard care
Substance use: Drug (non‐alcohol) use (Average number of different drugs used during the past month measured by the Opiate Treatment Index) · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 119 participantsLow
Cognitive behavioural therapy + motivational interviewing vs standard care
Relapse:* Relapse at 3 months after 9 months of treatment · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
RR 0.5 [0.24, 1.04]1 study · 36 participantsVery low
Cognitive behavioural therapy + motivational interviewing vs standard care
Global State: GAF scale of 1‐ 100 · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted4 studies · 445 participantsVery low
Cognitive behavioural therapy + motivational interviewing vs standard care
Quality of life / life satisfaction: Brief Quality of Life Scale · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 110 participantsLow
Integrated models of care vs standard care
Mental state · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted0 studies · 3 participantsUngraded
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Leavint the study early: Loss to Treatment · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 61 participantsVery low
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Adverse event: Death ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Substance use: Alcohol ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Substance use: Drug (non‐alcohol) ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Mental state ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Global State‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + psychosocial rehabilitation vs standard care
Quality of life/life satisfaction ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + intensive case management vs standard care
Leaving the study early: Loss to Treatment · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 59 participantsVery low
Cognitive behavioural therapy + intensive case management vs standard care
Adverse event: Death · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + intensive case management vs standard care
Substance use: alcohol ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Integrated models of care vs standard care
Global state: average score(GAF scale of 1 ‐ 100) · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted1 study · 171 participantsLow
Cognitive behavioural therapy + intensive case management vs standard care
Substance use: Drug (non‐alcohol) ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + intensive case management vs standard care
Mental state ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + intensive case management vs standard care
Global State ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy + intensive case management vs standard care
Quality of life/life satisfaction ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Integrated models of care vs standard care
Quality of life/life satisfaction: avearge score (General life satisfaction) Quality of Life Interview section, scale of 1 to 7 · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extracted2 studies · 372 participantsModerate
Non‐integrated models of care ‐ Assertive community treatment only/Intensive case management/Specialised case management services vs standard care
Leaving the study early: Lost to treatment · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
RR 1.21 [0.73, 1.99]3 studies · 134 participantsVery low
Non‐integrated models of care ‐ Assertive community treatment only/Intensive case management/Specialised case management services vs standard care
Adverse event: Death ‐ not measured · people with both severe mental illness and substance misuse
Psychosocial interventions for people with both severe mental illness and substance misuse (2019) · Cochrane
no estimate extractedNRNo studies
Lorazepam vs Oxazepam
Catatonia: clinically important change in catatonia symptoms (improved at least 50% on the VAS) · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
RR 0.95 [0.42, 2.16]1 study · 17 participantsVery low
Lorazepam vs Oxazepam
Service use: duration of stay in hospital · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
no estimate extractedNRNo studies
Lorazepam vs Oxazepam
Satisfaction with care: clinically important change in satisfaction by informal care‐givers · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
no estimate extractedNRNo studies
Lorazepam vs Oxazepam
Satisfaction with care: clinically important change in satisfaction by recipients of care · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
no estimate extractedNRNo studies
Lorazepam vs Oxazepam
Global state: clinically important change in global state (as defined by individual studies) · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
no estimate extractedNRNo studies
Lorazepam vs Oxazepam
Adverse effects: incidence of clinically important adverse effect · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
no estimate extractedNRNo studies
Lorazepam vs Oxazepam
General functioning: clinically important change in specific aspects of functioning, such as life skills ‒ as defined by each of the studies · catatonia in people with schizophrenia or SMI
Benzodiazepines for catatonia in people with schizophrenia or other serious mental illnesses (2019) · Cochrane
no estimate extractedNRNo studies
Modafinil vs placebo
Mental state: clinically important change in general mental state ‐ worsening psychosis · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
RR 0.91 [0.28, 2.98]6 studies · 209 participantsLow
Modafinil vs placebo
Cognitive function: average endpoint score** · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
no estimate extracted1 study · 48 participantsVery low
Modafinil vs placebo
Adverse effect/event(s) ‐ serious adverse events · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
RR 0.84 [0.06, 12.42]1 study · 35 participantsVery low
Modafinil vs placebo
Global state: clinically important change in global state · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
RR 6.36 [0.94, 43.07]1 study · 21 participantsVery low
Modafinil vs placebo
Leaving the study early ‐ for any reason · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
RR 1.26 [0.63, 2.53]9 studies · 357 participantsModerate
Modafinil vs placebo
Quality of life: average endpoint score** · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
no estimate extracted1 study · 20 participantsVery low
Modafinil vs placebo
Service use: hospital admission · schizophrenia or related disorders
Modafinil for people with schizophrenia or related disorders (2019) · Cochrane
RR 0.84 [0.06, 12.42]1 study · 35 participantsVery low
Peer support plus standard care vs standard care
Service use: hospital admission – medium term · people with schizophrenia or other serious mental illness
Peer support for people with schizophrenia or other serious mental illness (2019) · Cochrane
RR 0.44 [0.11, 1.75]1 study · 19 participantsVery low
Peer support plus standard care vs clinician‐led support plus standard care
Global state: relapse · people with schizophrenia or other serious mental illness
Peer support for people with schizophrenia or other serious mental illness (2019) · Cochrane
no estimate extractedNRNo studies
Peer support plus standard care vs clinician‐led support plus standard care
Global state: clinically important change in global state · people with schizophrenia or other serious mental illness
Peer support for people with schizophrenia or other serious mental illness (2019) · Cochrane
no estimate extractedNRNo studies