Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

407 questions · 412 findings · 45 reviews · Headline outcomes only

No studies found 137 · 33.3%GRADE not reported 8 · 1.9%Very low 129 · 31.3%Low 88 · 21.4%Moderate 47 · 11.4%High 3 · 0.7%

Hyperimmune immunoglobulin from human plasma vs saline placebo

Serious adverse events up to day 28 (data available only as a composite of serious adverse events or death up to day 28) · individuals with moderate or severe COVID‐19

Hyperimmune immunoglobulin from human plasma showed no clear difference in serious adverse events up to day 28 (data available only as a… compared with saline placebo (low certainty).

1 finding from 1 review

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

All‐cause mortality (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 all‐cause mortality (by day 28) compared with saline placebo (low certainty).

1 finding from 1 review

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

Worsening of clinical status (expressed as new need for IMV, admission to ICU, or death 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 worsening of clinical status (expressed as new need for IMV,… compared with saline placebo (low certainty).

1 finding from 1 review

Tap water vs Normal saline

Reduction in wound size · people with acute and chronic wounds

It is very uncertain whether tap water changes reduction in wound size compared with normal saline (very low certainty).

1 finding from 1 review

Tap water vs Normal saline

Pain · people with acute and chronic wounds

The review found no eligible studies for this question.

1 finding from 1 review

Distilled water vs Normal saline

Infection · people with fractures

It is very uncertain whether distilled water changes infection compared with normal saline (very low certainty).

1 finding from 1 review

Cooled boiled water vs Normal saline

Infection · people with fractures

It is very uncertain whether cooled boiled water changes infection compared with normal saline (very low certainty).

1 finding from 1 review