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
All‐cause mortality · 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
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
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
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
All‐cause mortality · 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
All‐cause mortality · 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
Death at hospital discharge · individuals with moderate to severe disease
1 finding from 1 review
Mortality: all causes · relatively healthy postmenopausal women
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Mortality: lung cancer · relatively healthy postmenopausal women
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Mortality: all cancers · relatively healthy postmenopausal women
Vitamin D plus calcium showed no clear difference in mortality: all cancers compared with placebo (moderate certainty).
1 finding from 1 review
1‐year overall mortality · ambulatory cancer patients receiving chemotherapy
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
1‐year overall mortality · ambulatory cancer patients receiving chemotherapy
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
All‐cause mortality · ambulatory patients with multiple myeloma receiving immunomodulatory agents
It is very uncertain whether vitamin K antagonist (VKA) changes all‐cause mortality compared with low molecular weight heparin (LMWH) (very low certainty).
2 findings 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
All‐cause mortality · people > 18 years of age with a diagnosed deep vein thrombosis
Fondaparinux plus vitamin K antagonist showed no clear difference in all‐cause mortality compared with standard therapy (moderate certainty).
1 finding from 1 review
Mortality: all causes · healthy women, aged 35 to 60, and men, aged 45 to 60, living in France
Vitamins A, C, E + selenium + zinc showed no clear difference in mortality: all causes compared with placebo (high certainty).
1 finding from 1 review
Mortality: lung cancer · healthy women, aged 35 to 60, and men, aged 45 to 60, living in France
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found