Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

404 questions · 409 findings · 122 reviews

No studies found 77 · 18.8%GRADE not reported 31 · 7.6%Very low 142 · 34.7%Low 83 · 20.3%Moderate 63 · 15.4%High 13 · 3.2%

Intervention not reported

Any adverse events during the trial period · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§

The intervention showed no clear difference in any adverse events during the trial period (low certainty).

1 finding from 1 review

Intervention not reported

Any adverse events during the trial period · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings table investigated…

The intervention showed no clear difference in any adverse events during the trial period (low certainty).

1 finding from 1 review

Intervention not reported

Serious adverse events during the trial period · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§

The intervention showed no clear difference in serious adverse events during the trial period (low certainty).

1 finding from 1 review

Intervention not reported

Serious adverse events during the trial period · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings table investigated…

It is very uncertain whether the intervention changes serious adverse events during the trial period (very low certainty).

1 finding from 1 review