Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

173 questions · 180 findings · 91 reviews

No studies found 50 · 27.8%GRADE not reported 15 · 8.3%Very low 56 · 31.1%Low 42 · 23.3%Moderate 13 · 7.2%High 4 · 2.2%

Non‐invasive brain stimulation and pharmacological intervention (combination) vs a pharmacological intervention and sham stimulation or usual care (single)

Adverse events: death ‐ at end of treatment (secondary outcome) · people with depression after stroke

It is very uncertain whether pharmacological intervention and non‐invasive brain stimulation… changes adverse events: death (secondary outcome) compared with a pharmacological intervention and sham stimulation or usual care… (very low certainty).

1 finding from 1 review

Assistive technology for vision improvement interventions vs usual care or attention control

Adverse events Falls while switching glasses · Older people living in the community

Assistive technology for vision improvement interventions showed no clear difference in adverse events Falls while switching glasses compared with usual care or attention control (low certainty).

1 finding from 1 review

Biofeedback vs usual care

Adverse events post‐intervention ‐ not reported · patients with fibromyalgia

The review found no eligible studies for this question.

1 finding from 1 review

Mindfulness vs usual care

Adverse events post‐intervention ‐ not reported · patients with fibromyalgia

The review found no eligible studies for this question.

1 finding from 1 review

Relaxation vs usual care

Adverse events post‐intervention ‐ not reported · patients with fibromyalgia

The review found no eligible studies for this question.

1 finding from 1 review

Antibiotics vs placebo or usual care

Serious adverse events Duration 3 days to 3 weeks · acute asthma exacerbation

Antibiotics showed no clear difference in serious adverse events Duration 3 days to 3 weeks compared with placebo or usual care (low certainty).

1 finding from 1 review

Multi‐component intervention vs other treatments/routine care

Number experiencing adverse effects · the management of chronic obstructive pulmonary disease

It is very uncertain whether multi‐component intervention changes adverse events: number of people experiencing an AE compared with other intervention or routine, usual care or control treatment (very low certainty).

1 finding from 1 review

Intensive counseling vs usual family planning care

Rate of discontinuation due to all other adverse events · Women of reproductive age seeking to avoid pregnancy

Intensive counseling showed no clear difference in rate of discontinuation due to all other adverse events compared with usual family planning care (low certainty).

1 finding from 1 review

Short‐stay unit hospitalisation vs usual care

Serious adverse events at time point closest to 90 days · participants with internal medicine diseases and conditions

It is very uncertain whether short‐stay unit hospitalisation changes serious adverse events at time point closest to 90 days compared with usual care (very low certainty).

1 finding from 1 review