Findings

What do systematic reviews say?

7 questions · 7 findings · 1 reviews · Schizophrenia

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No studies found 4 · 57.1%GRADE not reported 0 · 0%Very low 0 · 0%Low 2 · 28.6%Moderate 1 · 14.3%High 0 · 0%

CONTINGENCY MANAGEMENT vs usual care

Lost to treatment · people with both severe mental illness and substance misuse

Contingency management probably leads to higher leaving the study early: Lost to treatment compared with standard care (moderate certainty).

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
RR 1.55 [1.13, 2.11]
2 studies · 255 participants
Moderate

CONTINGENCY MANAGEMENT vs usual care

Adverse event: Death ‐ not measured · people with both severe mental illness and substance misuse

The review found no eligible studies for this question.

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CONTINGENCY MANAGEMENT vs usual care

Alcohol use · people with both severe mental illness and substance misuse

The review found no eligible studies for this question.

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CONTINGENCY MANAGEMENT vs usual care

Drug (non‐alcohol) use Number with stimulant‐positive urine test · people with both severe mental illness and substance misuse

Contingency management showed no clear difference in substance use: Drug (non‐alcohol) Number with stimulant‐positive… compared with standard care (low certainty).

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
RR 0.83 [0.65, 1.06]
1 study · 176 participants
Low

CONTINGENCY MANAGEMENT vs usual care

Service use: Number of participants hospitalised · people with both severe mental illness and substance misuse

Contingency management may leads to lower service use*: Number hospitalised compared with standard care (low certainty).

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
RR 0.21 [0.05, 0.93]
1 study · 176 participants
Low

CONTINGENCY MANAGEMENT vs usual care

Global state · people with both severe mental illness and substance misuse

The review found no eligible studies for this question.

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

CONTINGENCY MANAGEMENT vs usual care

Quality of life/life satisfaction · people with both severe mental illness and substance misuse

The review found no eligible studies for this question.

1 finding from 1 review

Psychosocial interventions for people with both severe mental illness and substance misuse 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found