Findings

What do systematic reviews say?

23 questions · 23 findings · 4 reviews · Acute Respiratory Infections

No studies found 1 · 4.3%GRADE not reported 1 · 4.3%Very low 8 · 34.8%Low 11 · 47.8%Moderate 2 · 8.7%High 0 · 0%

School absence (number of days) · patients with common cold

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 394 participants
Very low

Antibiotic use · patients with common cold

The intervention may leads to lower antibiotic use (low certainty).

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
OR 0.27 [0.16, 0.46]
2 studies · 394 participants
Low

Any adverse event · patients with common cold

The intervention led to higher any adverse event; GRADE not reported.

1 finding from 1 review

Zinc for the common cold 2013 · Cochrane Headline outcomes only
OR 1.58 [1.19, 2.09]
8 studies · 1217 participants
GRADE not reported