All‐cause mortality · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…
Vitamin D may leads to lower all‐cause mortality compared with placebo or no intervention (low certainty).
1 finding from 1 review
Health‐related quality of life · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Health economics · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Visual field sensitivity (visual field) · retinitis pigmentosa
1 finding from 1 review
Visual acuitychange in logMAR visual acuity, may be reported as ETDRS · retinitis pigmentosa
It is very uncertain whether vitamin A and fish oils (docosahexaenoic acid) changes visual acuitychange in logMAR visual acuity, may be reported as ETDRS compared with placebo, vitamins (including vitamin A), or no therapy (very low certainty).
1 finding from 1 review
Electroretinography (ERG) · retinitis pigmentosa
1 finding from 1 review
Optical coherence tomography (OCT) · retinitis pigmentosa
1 finding from 1 review
Adverse effects: as reported by studies · retinitis pigmentosa
1 finding from 1 review
Vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
Vitamin D given to infants may leads to lower vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L compared with placebo or no treatment (low certainty).
1 finding from 1 review
Vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
It is very uncertain whether vitamin D given to infants changes vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L compared with placebo or no treatment (very low certainty).
1 finding from 1 review
Serum 25‐OH vitamin D level at latest time reported nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
1 finding from 1 review
Neonatal mortality · promoting growth and development in very low birth weight infants receiving human milk
Supplemental vitamin A showed no clear difference in neonatal death compared with no supplementation (moderate certainty).
1 finding from 1 review
Chronic lung disease · promoting growth and development in very low birth weight infants receiving human milk
Supplemental vitamin A showed no clear difference in chronic lung disease (oxygen use at 28 days in survivors) compared with no supplementation (moderate certainty).
2 findings from 1 review
Death or chronic lung disease · promoting growth and development in very low birth weight infants receiving human milk
Supplemental vitamin A probably leads to lower death or chronic lung disease (oxygen use at 28 days) compared with no supplementation (moderate certainty).
2 findings from 1 review
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