Death before 36 weeks' postmenstrual age · promoting growth and development in very low birth weight infants receiving human milk
Supplemental vitamin A showed no clear difference in death before 36 weeks' postmenstrual age compared with no supplementation (moderate certainty).
1 finding from 1 review
Neurodevelopmental impairment at 18 to 22 months · promoting growth and development in very low birth weight infants receiving human milk
Supplemental vitamin A showed no clear difference in neurodevelopmental impairment at 18 to 22 months compared with no supplementation (low certainty).
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
Vomiting · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to higher vomiting compared with placebo or usual care (moderate 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
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 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
Diarrhoea incidence Mean episodes per child per year · children aged between 6 months and 5 years
Vitamin A supplementation may leads to lower diarrhoea incidence Mean episodes per child per year compared with placebo or usual care (low certainty).
1 finding from 1 review
Measles incidence Mean episodes of measles per child per year · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower measles incidence Mean episodes of measles per child per year compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Incidence of LRTI · children aged between 6 months and 5 years
Vitamin A supplementation showed no clear difference in LRTI incidence Mean episodes per child per year compared with placebo or usual care (low certainty).
1 finding from 1 review
Bitot's spots incidence · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower bitot's spots incidence compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Night blindness incidence · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower night blindness incidence compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Pre‐eclampsia · pregnant women and their infants..
Vitamin D supplementation probably leads to lower pre‐eclampsia compared with placebo or no intervention (moderate certainty).
1 finding from 1 review
Gestational diabetes · pregnant women and their infants..
Vitamin D supplementation probably leads to lower gestational diabetes compared with placebo or no intervention (moderate certainty).
1 finding from 1 review
Severe PPH (≥ 1000 mL) · pregnant women and their infants..
Vitamin D supplementation may leads to lower maternal adverse events: severe postpartum haemorrhage compared with placebo or no intervention (low certainty).
1 finding from 1 review
Maternal adverse event: nephritic syndrome · pregnant women and their infants..
It is very uncertain whether vitamin D supplementation changes maternal adverse event: nephritic syndrome compared with placebo or no intervention (very low certainty).
1 finding from 1 review
Maternal adverse event: hypercalcaemia · pregnant women and their infants..
1 finding from 1 review
Preterm birth · pregnant women and their infants..
Vitamin D supplementation showed no clear difference in preterm birth (less than 37 weeks' gestation) compared with placebo or no intervention (low certainty).
1 finding from 1 review
Low birthweight · pregnant women and their infants..
Vitamin D supplementation probably leads to lower low birthweight (less than 2500 g) compared with placebo or no intervention (moderate certainty).
1 finding from 1 review
Major cardiovascular event Physicians · middle‐aged US male physicians
Vitamin C supplementation showed no clear difference in major cardiovascular event Physicians compared with placebo (low certainty).
1 finding from 1 review