Risk of adverse events, including those that may be due to zinc supplements Duration of · adults and children with colds and/or upper respiratory infections
1 finding from 1 review
Risk of adverse events, including those that may be due to zinc supplements Duration of · adults and children without colds
1 finding from 1 review
Change in blood zinc concentrations · adults with HIV infection
1 finding from 1 review
Proportion of participants developing a cold Duration of · adults and children without colds
1 finding from 1 review
Proportion with improved global symptom severity Duration of · adults and children with colds and/or upper respiratory infections
1 finding from 1 review
Risk of serious adverse events, including those that may be complications of the common cold · adults and children with colds and/or upper respiratory infections
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Mean number of colds developed Duration of · adults and children without colds
1 finding from 1 review
Duration of cold symptoms (days) · adults and children without colds
1 finding from 1 review
Standardised mean global symptom severity Duration of · adults and children without colds
1 finding from 1 review
Risk of serious adverse events, including those that may be complications of the common cold Duration of · adults and children without colds
1 finding from 1 review
Duration of cold symptoms (days) · adults and children with colds and/or upper respiratory infections
1 finding from 1 review
Risk of continuing colds at study end Duration of · adults and children with colds and/or upper respiratory infections
1 finding from 1 review
Standardised mean global symptom severity Duration of · adults and children with colds and/or upper respiratory infections
1 finding from 1 review
All‐cause mortality · children with measles and pneumonia
It is very uncertain whether zinc changes mortality compared with placebo (very low certainty).
1 finding from 1 review
Fever clearance time · children with measles and pneumonia
It is very uncertain whether zinc changes time to fever abatement compared with placebo (very low certainty).
1 finding from 1 review
Mental development index (MDI) at 18 months · infants and children
1 finding from 1 review
Psychomotor development · infants and children
1 finding from 1 review
Cognitive function · infants and children
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Intelligence quotient · infants and children
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse effects · infants and children
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found