Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

149 questions · 149 findings · 58 reviews

No studies found 31 · 20.8%GRADE not reported 17 · 11.4%Very low 28 · 18.8%Low 41 · 27.5%Moderate 23 · 15.4%High 9 · 6%

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies (EpAbs) vs saline placebo

Serious adverse events (by day 28) · individuals with moderate or severe COVID‐19

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies… showed no clear difference in serious adverse events (by day 28) compared with saline placebo (low certainty).

1 finding from 1 review

Intervention not reported

Investigator‐defined adverse events · individuals with atrial fibrillation who are undergoing cardiac surgery

It is very uncertain whether the intervention changes investigator‐defined adverse events (very low certainty).

1 finding from 1 review

Powered toothbrush (any mode of action) vs Manual toothbrush

Adverse events (soft tissue trauma) · Individuals of any age with no reported disability that might affect toothbrushing (including people wearing orthodontic appliances)
1 finding from 1 review
  • SoF 'Adverse events' row (narrative): There was no apparent relationship between the use of powered toothbrushes and soft tissue trauma. In part this finding was due to the very small number of adverse events reported…
    40 studies
    GRADE not reported

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies (EpAbs) vs saline placebo

Adverse events: all grades · individuals with moderate or severe COVID‐19

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies… showed no clear difference in adverse events of any grade (by day 28) compared with saline placebo (low certainty).

1 finding from 1 review

Long‐term red cell transfusion vs no transfusion

Adverse events associated with transfusion · individuals with sickle cell disease who are at risk of a primary stroke who have not had previous long‐term red cell transfusions

It is very uncertain whether long‐term red cell transfusion changes adverse events associated with transfusion compared with no transfusion (very low certainty).

1 finding from 1 review