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
Adverse events during first 48‐72 hours post supplementation ‐ bulging fontanelle · mortality and morbidity in term neonates
Neonatal vitamin A supplementation leads to higher adverse events during first 48‐72 hours post supplementation ‐… compared with control (high certainty).
1 finding from 1 review
Vomiting · mortality and morbidity in term neonates
Neonatal vitamin A supplementation showed no clear difference in adverse events during first 48‐72 hours post supplementation ‐… compared with control (high certainty).
1 finding from 1 review
Adverse effects: diarrhoea 48 to 72 hours · mortality and morbidity in term neonates
Neonatal vitamin A supplementation showed no clear difference in adverse events during first 48‐72 hours post supplementation ‐… compared with control (low certainty).
1 finding from 1 review
Any adverse effects · pregnant women
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Maternal adverse events · pregnant women and their infants..
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Preterm birth · pregnant women and their infants..
Vitamin D + calcium supplementation may leads to higher 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..
It is very uncertain whether vitamin D + calcium supplementation changes low birthweight (less than 2500 g) compared with placebo or no intervention (very low certainty).
1 finding from 1 review
Pre‐eclampsia · pregnant women and their infants..
Vitamin D + calcium 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..
It is very uncertain whether vitamin D + calcium supplementation changes gestational diabetes compared with placebo or no intervention (very low certainty).
1 finding from 1 review
Pre‐eclampsia · women during pregnancy
A dose of vitamin D 601 IU or higher showed no clear difference in pre‐eclampsia compared with 600 IU or lower alone or with other nutrients (low certainty).
1 finding from 1 review
Gestational diabetes · women during pregnancy
A dose of vitamin D 601 IU or higher probably leads to lower gestational diabetes compared with 600 IU or lower alone or with other nutrients (moderate certainty).
1 finding from 1 review
Preterm birth · women during pregnancy
A dose of vitamin D 601 IU or higher showed no clear difference in preterm birth compared with 600 IU or lower alone or with other nutrients (low certainty).
1 finding from 1 review
Low birthweight · women during pregnancy
It is very uncertain whether A dose of vitamin D 601 IU or higher changes low birthweight compared with 600 IU or lower alone or with other nutrients (very low certainty).
1 finding from 1 review
Rate of exacerbations requiring systemic corticosteroids · children and adults with predominantly mild to moderate asthma
Summary of findings table ‐ Vitamin D showed no clear difference in proportion of participants with one or more exacerbations treated… compared with placebo (high certainty).
1 finding from 1 review
Patients with severe exacerbations (requiring hospitalisation or ER visit) · children and adults with predominantly mild to moderate asthma
Summary of findings table ‐ Vitamin D showed no clear difference in proportion of participants with one or more exacerbations requiring… compared with placebo (moderate certainty).
1 finding from 1 review
Asthma control · children and adults with predominantly mild to moderate asthma
1 finding from 1 review
FEV1 % predicted · children and adults with predominantly mild to moderate asthma
1 finding from 1 review
Proportion of participants with one or more serious adverse events due to any cause · children and adults with predominantly mild to moderate asthma
Summary of findings table ‐ Vitamin D showed no clear difference in proportion of participants with one or more serious adverse events… compared with placebo (high certainty).
1 finding from 1 review
People with fatal asthma exacerbation. · children and adults with predominantly mild to moderate asthma
1 finding from 1 review