Findings

What do systematic reviews say?

56 questions · 56 findings · 4 reviews · Schizophrenia · Headline outcomes only

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No studies found 23 · 41.1%GRADE not reported 0 · 0%Very low 19 · 33.9%Low 8 · 14.3%Moderate 6 · 10.7%High 0 · 0%

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

Cannabis use · patients with SCHIZOPHRENIA AND CANNABIS USE

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
1 study · 54 participants
Moderate

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

General mental state: Positive psychiatric symptom score PANSS5. Scale from: 7 to 49. · patients with SCHIZOPHRENIA AND CANNABIS USE

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
1 study · 62 participants
Moderate

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

Global state: relapse ‐ medium term ‐ not measured · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

Average change in quality of life/satisfaction · patients with SCHIZOPHRENIA AND CANNABIS USE

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
1 study · 49 participants
Moderate

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

Adverse effects: no clinically important adverse effects ‐ medium term ‐ not measured · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

Leaving the study early ‐ medium term ‐ not reported · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: ADJUNCT PSYCHOLOGICAL THERAPY vs treatment

Satisfaction with treatment ‐ medium term ‐ not measured · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

Global state: relapse ‐ medium term ‐ not measured · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

General functioning ‐ no clinically important change in general functioning · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

Adverse effects: no clinically important adverse effects ‐ medium term ‐ not measured · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

Leaving the study early ‐ medium term ‐ not reported · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

Satisfaction with treatment ‐ medium term ‐ not measured · patients with SCHIZOPHRENIA AND CANNABIS USE

The review found no eligible studies for this question.

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

Cannabis use · patients with SCHIZOPHRENIA AND CANNABIS USE

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT… showed no clear difference in behaviour: Cannabis use: Used cannabis in last 4 weeks ‐ medium term… compared with NON‐SPECIFIC PSYCOEDUCTION (moderate certainty).

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
RR 1.04 [0.62, 1.74]
1 study · 47 participants
Moderate

CANNABIS REDUCTION: PSYCHOLOGICAL THERAPY (SPECIFICALLY ABOUT CANNABIS AND PSYCHOSIS) vs NON‐SPECIFIC PSYCOEDUCTION

Mental state · patients with SCHIZOPHRENIA AND CANNABIS USE

1 finding from 1 review

Cannabis and schizophrenia 2014 · Cochrane Headline outcomes only
no estimate extracted
1 study · 47 participants
Moderate

SUPPORTIVE THERAPY vs ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT

Mental state: No clinically important improvement · patients with schizophrenia

It is very uncertain whether SUPPORTIVE THERAPY changes mental state: No clinically important improvement compared with ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT (very low certainty).

1 finding from 1 review

Supportive therapy for schizophrenia 2015 · Cochrane Headline outcomes only
RR 1.27 [1.04, 1.54]
3 studies · 194 participants
Very low

SUPPORTIVE THERAPY vs ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT

Leaving the study early · patients with schizophrenia

SUPPORTIVE THERAPY showed no clear difference in leaving the study early compared with ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT (moderate certainty).

1 finding from 1 review

Supportive therapy for schizophrenia 2015 · Cochrane Headline outcomes only
RR 1.03 [0.87, 1.21]
19 studies · 1412 participants
Moderate

SUPPORTIVE THERAPY vs ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT

Level of functioning · patients with schizophrenia

1 finding from 1 review

Supportive therapy for schizophrenia 2015 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 78 participants
Very low

SUPPORTIVE THERAPY vs ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT

Satisfaction with treatment: Recipient of care not satisfied with treatment · patients with schizophrenia

It is very uncertain whether SUPPORTIVE THERAPY changes satisfaction with treatment: Recipient of care not satisfied with… compared with ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT (very low certainty).

1 finding from 1 review

Supportive therapy for schizophrenia 2015 · Cochrane Headline outcomes only
RR 3.19 [1.01, 10.07]
1 study · 45 participants
Very low

SUPPORTIVE THERAPY vs ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT

Quality of life QLS · patients with schizophrenia

1 finding from 1 review

Supportive therapy for schizophrenia 2015 · Cochrane Headline outcomes only
no estimate extracted
1 study · 19 participants
Very low

SUPPORTIVE THERAPY vs ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT

Relapse · patients with schizophrenia

It is very uncertain whether SUPPORTIVE THERAPY changes global state: Relapse compared with ANY OTHER PSYCHOLOGICAL OR PSYCHOSOCIAL TREATMENT (very low certainty).

1 finding from 1 review

Supportive therapy for schizophrenia 2015 · Cochrane Headline outcomes only
RR 1.19 [0.66, 2.16]
5 studies · 270 participants
Very low