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%

Single foetal haemoglobin inducer at any dose or duration vs placebo or usual care

Adverse events · people with non‐transfusion‐dependent β‐thalassaemia

It is very uncertain whether single foetal haemoglobin inducer at any dose or duration changes adverse events compared with usual care or placebo (very low certainty).

1 finding from 1 review

CBT vs inactive control (usual care care, attention control, waitlist)

Adverse events · People aged 12 years and over with painful TMD lasting 3 months or longer
1 finding from 1 review
  • Only 1 study reported adverse events as an outcome (Litt 2010): it found worsening symptoms in 13 people treated with an oral splint (as part of standard treatment) and 4 people treated with CBT.
    1 study · 101 participants
    Very low

Homeopathic medicinal products (non‐individualised treatment) vs placebo or usual care

Adverse events · children aged up to 16 years with ARTIs

It is very uncertain whether homeopathic medicinal products (non‐individualised treatment) changes adverse events compared with placebo or usual care (very low certainty).

1 finding from 1 review

Homeopathic medicinal products (individualised treatment) vs placebo or usual care

Adverse events · children aged up to 16 years with ARTIs

Homeopathic medicinal products (individualised treatment) showed no clear difference in adverse events compared with placebo or usual care (moderate certainty).

1 finding from 1 review

Discontinuation by "tapering" vs usual family planning care

Adverse events · participants with depressive or anxiety disorders

It is very uncertain whether discontinuation by "tapering" changes adverse events compared with continuation (or usual care) (very low certainty).

1 finding from 1 review

BoNT‐A vs usual care or physiotherapy

Adverse events · children with CP

The review found no eligible studies for this question.

3 findings from 1 review