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
Fatal or nonfatal myocardial infarction · middle‐aged US male physicians
Vitamin C supplementation showed no clear difference in total myocardial infarction (fatal and non‐fatal) Physicians compared with placebo (low certainty).
1 finding from 1 review
Stroke · middle‐aged US male physicians
Vitamin C supplementation showed no clear difference in total stroke (fatal and non‐fatal) Physicians compared with placebo (low certainty).
1 finding from 1 review
Self‐reported CABG/PTCA Participant self‐reports · middle‐aged US male physicians
Vitamin C supplementation showed no clear difference in self‐reported CABG/PTCA Participant self‐reports compared with placebo (low certainty).
1 finding from 1 review
Self‐reported angina Participant self‐reports · middle‐aged US male physicians
Vitamin C supplementation showed no clear difference in self‐reported angina Participant self‐reports compared with placebo (low certainty).
1 finding from 1 review
Overall clinical improvement at short‐term · carpal tunnel syndrome
1 finding from 1 review
Overall clinical improvement at long‐term · carpal tunnel syndrome
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse events · carpal tunnel syndrome
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Average mouth pain during RAS episodes · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
Daily multivitamin showed no clear difference in average mouth pain during RAS episodes compared with placebo; GRADE not reported.
1 finding from 1 review
MD -0.05 [-0.71, 0.61]
1 study
GRADE not reported
Average number of new lesions per week · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
Daily multivitamin showed no clear difference in mean number of new lesions compared with placebo; GRADE not reported.
1 finding from 1 review
MD -0.41 [-1.85, 1.03]
1 study
GRADE not reported
Duration of episodes · Participants with a previous or current history of recurrent aphthous stomatitis (RAS), diagnosed on history and clinical examination;…
Daily multivitamin showed no clear difference in duration of episodes compared with placebo; GRADE not reported.
1 finding from 1 review
MD -0.33 [-2.06, 1.40]
1 study
GRADE not reported
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
Overall improvement in CTS: SSS: short term (< 3 months) Scale from: 1 to 5 · carpal tunnel syndrome
1 finding from 1 review
Overall improvement in CTS: SSS: long term ‐ not measured · carpal tunnel syndrome
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Overall improvement in CTS: FSS: short term (< 3 months) Scale from: 1 to 5 · carpal tunnel syndrome
1 finding from 1 review
Overall improvement in CTS: FSS: long term ‐ not reported · carpal tunnel syndrome
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse events · carpal tunnel syndrome
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 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
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
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