Change in CD4 count · Pregnant and lactating women with HIV
1 finding from 1 review
Change in BMI · adults and children with cystic fibrosis
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Time to next exacerbation · adults and children with cystic fibrosis
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse events · adults and children with cystic fibrosis
Summary of findings: oral vitamin E supplementation showed no clear difference in adverse events compared with placebo or no treatment (low certainty).
1 finding from 1 review
FEV1 % predicted: absolute change from baseline · adults and children with cystic fibrosis
The review found no eligible studies for this question.
2 findings from 1 review
no estimate extracted
Studies not reported
No studies found
no estimate extracted
Studies not reported
No studies found
Quality of life · adults and children with cystic fibrosis
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Any AMD · general population
Multivitamin probably leads to higher any AMD compared with placebo (moderate certainty).
1 finding from 1 review
Late AMD · general population
Multivitamin showed no clear difference in late AMD compared with placebo (moderate certainty).
1 finding from 1 review
Neovascular AMD · general population
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Geographic atrophy · general population
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Quality of life · general population
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 · general population
1 finding from 1 review
no estimate extracted
Studies not reported
Moderate
Resource use and costs · general population
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L or less) · general population over 2 years of age
It is very uncertain whether staple food fortified with vitamin A plus other micronutrients changes subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L… compared with no intervention (very low certainty).
1 finding from 1 review
Clinical vitamin A deficiency (as defined by night blindness) · general population over 2 years of age
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Any adverse effects (e.g. hypervitaminosis A, as defined by the trialists) · general population over 2 years of age
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Any adverse effects (e.g. hypervitaminosis A, as defined by the trialists) · general population over 2 years of age
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L or less) · general population over 2 years of age
Staple foods fortified with vitamin A plus other micronutrients probably leads to lower subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L… compared with same unfortified staple foods (moderate certainty).
1 finding from 1 review
Clinical vitamin A deficiency (as defined by night blindness) · general population over 2 years of age
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Bleeding complications: 0.2 mg IM versus 0.5 mg IM · preterm infants
Higher dose vitamin K showed no clear difference in bleeding complications: 0.2 mg IM versus 0.5 mg IM compared with lower dose vitamin K (low certainty).
1 finding from 1 review