Findings

What do systematic reviews say?

8 questions · 8 findings · 1 reviews · Methodology

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No studies found 2 · 25%GRADE not reported 0 · 0%Very low 3 · 37.5%Low 3 · 37.5%Moderate 0 · 0%High 0 · 0%

Closest answers

The findings closest to your search, judged one by one by TypeSafe's Jev model.

Direct match
- · All placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment)
  Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
  no estimate extracted
  65 studies · 2446 participants
  Low
Direct match
- · Pharmacological placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment)
  Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 279 participants
  Very low
Direct match
- · Psychological placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment)
  Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
  no estimate extracted
  38 studies · 1263 participants
  Low
Direct match
- · Non‐serious adverse events for all placebos compared with wait‐list or no treatment (Spontaneous reporting of dichotomous outcomes) (Post‐treatment)
  Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
  RD 0.03
  14 studies · 590 participants
  Very low
Direct match
- · Serious adverse events for all placebos compared with wait‐list or no treatment (Spontaneous reporting of dichotomous outcomes) (Post‐treatment)
  Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 517 participants
  Very low

Intervention not reported

Non‐serious adverse events for all placebos compared with wait‐list or no treatment (Spontaneous reporting of dichotomous outcomes) (Post‐treatment) · patients with mental health disorders

It is very uncertain whether the intervention changes non‐serious adverse events for all placebos compared with wait‐list… (very low certainty).

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
RD 0.03
14 studies · 590 participants
Very low

Intervention not reported

Serious adverse events for all placebos · patients with mental health disorders

The review found no eligible studies for this question.

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Non‐serious adverse events for all placebos · patients with mental health disorders

The review found no eligible studies for this question.

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

All placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment) · patients with mental health disorders

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
65 studies · 2446 participants
Low

Intervention not reported

Psychological placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment) · patients with mental health disorders

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
38 studies · 1263 participants
Low

Intervention not reported

Pharmacological placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment) · patients with mental health disorders

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 279 participants
Very low

Intervention not reported

Physical placebos compared with wait‐list or no‐treatment (Variety of continuous outcome) (Post‐treatment) · patients with mental health disorders

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
17 studies · 896 participants
Low

Intervention not reported

Serious adverse events for all placebos compared with wait‐list or no treatment (Spontaneous reporting of dichotomous outcomes) (Post‐treatment) · patients with mental health disorders

It is very uncertain whether the intervention changes serious adverse events for all placebos compared with wait‐list or… (very low certainty).

1 finding from 1 review

Control interventions in randomised trials among people with mental health disorders 2022 · Cochrane Headline outcomes only
no estimate extracted
11 studies · 517 participants
Very low