Stillbirth · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…
Any vitamin E supplementation showed no clear difference in stillbirth compared with placebo, no placebo or other supplements (moderate certainty).
1 finding from 1 review
Preterm birth · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…
Any vitamin E supplementation showed no clear difference in preterm birth (less than 37 weeks' gestation) compared with placebo, no placebo or other supplements (high certainty).
1 finding from 1 review
Pre‐eclampsia · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…
Any vitamin E supplementation showed no clear difference in clinical pre‐eclampsia (random‐effects model) compared with placebo, no placebo or other supplements (moderate certainty).
1 finding from 1 review
Intrauterine growth restriction · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…
Any vitamin E supplementation showed no clear difference in intrauterine growth restriction (various definitions) compared with placebo, no placebo or other supplements (high certainty).
1 finding from 1 review
Preterm prelabour rupture of membranes · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…
Any vitamin E supplementation showed no clear difference in prelabour rupture of fetal membranes ‐ preterm compared with placebo, no placebo or other supplements (low certainty).
1 finding from 1 review
Bleeding episodes (placental abruption) · pregnant women receiving vitamin E supplementation or control, living in areas where there is either inadequate dietary intake of vitamin…
Any vitamin E supplementation leads to lower bleeding episodes (placental abruption) compared with placebo, no placebo or other supplements (high certainty).
1 finding from 1 review
Vitamin A deficiency · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower vitamin A deficiency compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Maternal vitamin D concentration at term (25‐hydroxyvitamin D) (nmol/L) (ALL) · pregnant women
Meta-analysis of randomised trials of vitamin D supplementation for Maternal vitamin D concentrations at term: WMD 47.08 (95% CI 23.76 to 70.39), statistically significant. Umbrella review outcome-level evidence grade: Probable.
1 finding from 1 review
WMD 47.08 [23.76, 70.39]
4 studies
GRADE not reported
Maternal vitamin B12 deficiency · pregnant women
It is very uncertain whether summary of findings table ‐ Vitamin B12 supplementation changes maternal vitamin B12 deficiency compared with placebo/no vitamin B12 supplementation (very low certainty).
1 finding from 1 review
Vitamin A deficiency · mortality and morbidity in term neonates
Neonatal vitamin A supplementation showed no clear difference in vitamin A deficiency (serum retinol < 0.70 micromol/L) at 6 weeks of… compared with control (high certainty).
2 findings from 1 review
Ulcer healing · people with diabetes and foot ulcers
It is very uncertain whether magnesium and vitamin E co‐supplementation changes ulcer healing (absolute change in individual parameters of ulcer… compared with placebo (very low certainty).
3 findings from 1 review
Ulcer healing (absolute change in individual parameters of ulcer dimensions over time: mean (SD) cm wound width reduction · people with diabetes and foot ulcers
It is very uncertain whether magnesium and vitamin E co‐supplementation changes ulcer healing (absolute change in individual parameters of ulcer… compared with placebo (very low certainty).
1 finding from 1 review
Quality of life · people with diabetes and foot ulcers
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 · people with diabetes and foot ulcers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Development of any new foot ulcers · people with diabetes and foot ulcers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Amputation · people with diabetes and foot ulcers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
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