All‐cause mortality · Adults with chronic kidney disease not requiring dialysis
Meta-analysis of randomised trials of vitamin D supplementation for Mortality: RR 1.40 (95% CI 0.38 to 5.15), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
1 finding from 1 review
All‐cause mortality · Adults with chronic kidney disease requiring dialysis
Meta-analysis of randomised trials of vitamin D supplementation for Mortality: RR 1.34 (95% CI 0.34 to 5.24), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
1 finding from 1 review
All‐cause mortality · children aged between 6 months and 5 years
Vitamin A supplementation leads to lower all‐cause mortality compared with placebo or usual care (high certainty).
1 finding from 1 review
Mortality due to LRTI · children aged between 6 months and 5 years
Vitamin A supplementation showed no clear difference in mortality due to LRTI compared with placebo or usual care (low certainty).
1 finding from 1 review
Mortality (all cause) · Adults (general population)
Meta-analysis of randomised trials of vitamin D supplementation for Mortality (all cause) (Vitamin D2, general population): RR 1.04 (95% CI 0.97 to 1.11), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
2 findings from 1 review
Mortality due to measles · children aged between 6 months and 5 years
Vitamin A supplementation showed no clear difference in mortality due to measles compared with placebo or usual care (low certainty).
1 finding from 1 review
Mortality due to diarrhoea · children aged between 6 months and 5 years
Vitamin A supplementation leads to lower mortality due to diarrhoea compared with placebo or usual care (high certainty).
1 finding from 1 review
All‐cause mortality Physicians · middle‐aged US male physicians
It is very uncertain whether vitamin C supplementation changes all‐cause mortality Physicians compared with placebo (very low certainty).
1 finding from 1 review
Cardiovascular mortality Physicians · middle‐aged US male physicians
It is very uncertain whether vitamin C supplementation changes cardiovascular mortality Physicians compared with placebo (very low certainty).
1 finding from 1 review
Change in Infant Mortality Rate per 1000 live births1 · women in the postpartum period
Vitamin A supplementation (200,000 to 400,000 IU) showed no clear difference in infant mortality compared with placebo or no treatment (low certainty).
1 finding from 1 review
Maternal death · women in the postpartum period
Vitamin A supplementation (200,000 to 400,000 IU) showed no clear difference in maternal mortality compared with placebo or no treatment (moderate certainty).
1 finding from 1 review
Neonatal mortality · mortality and morbidity in term neonates
Neonatal vitamin A supplementation showed no clear difference in all‐cause neonatal mortality: risk ratios based on cumulative risk… compared with control (high certainty).
1 finding from 1 review
Infant Mortality at 6 Months · mortality and morbidity in term neonates
Neonatal vitamin A supplementation showed no clear difference in all‐cause infant mortality at 6 months: risk ratios based on… compared with control (high certainty).
1 finding from 1 review
All‐cause infant mortality at 6 months: risk ratios based on cumulative risk (%, adjusted for clustering) ‐ term infants · mortality and morbidity in term neonates
It is very uncertain whether neonatal vitamin A supplementation changes all‐cause infant mortality at 6 months: risk ratios based on… compared with control (very low certainty).
1 finding from 1 review