Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

83 questions · 83 findings · 29 reviews

No studies found 25 · 30.1%GRADE not reported 2 · 2.4%Very low 21 · 25.3%Low 20 · 24.1%Moderate 13 · 15.7%High 2 · 2.4%

Anticoagulant vs different dose of the same anticoagulant

Adverse events (minor bleeding) · non‐hospitalised individuals with COVID‐19 (asymptomatic and mild disease)

Anticoagulant showed no clear difference in adverse events (minor bleeding) compared with different dose of the same anticoagulant (low certainty).

1 finding from 1 review

Quinine vs placebo

Minor adverse events · patients with muscle cramps
1 finding from 1 review

Vitamin A vs placebo

Adverse events: minor gastrointestinal symptoms · healthy people and healthy male physicians

Vitamin A leads to higher adverse events: minor gastrointestinal symptoms compared with placebo (high certainty).

1 finding from 1 review