Lumbar spine bone mineral density (BMD) · children
Meta-analysis of randomised trials of vitamin D supplementation for Bone mineral density in lumbar spine, Healthy children: SMD 0.15 (95% CI -0.01 to 0.31), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
1 finding from 1 review
SMD 0.15 [-0.01, 0.31]
5 studies
GRADE not reported
Hip Fracture · Older or community-dwelling adults
Meta-analysis of randomised trials of vitamin D supplementation for Fractures: hip, Men aged >65 years and postmenopausal women: RR 1.15 (95% CI 0.99 to 1.33), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
1 finding from 1 review
Birth length · pregnant women
Meta-analysis of randomised trials of vitamin D supplementation for Birth length: WMD 0.97 (95% CI -0.41 to 2.34), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.
1 finding from 1 review
WMD 0.97 [-0.41, 2.34]
2 studies
GRADE not reported
Systolic blood pressure · Adults (general population)
Meta-analysis of randomised trials of vitamin D supplementation for Systolic blood pressure: WMD -2.39 (95% CI -5.7 to 0.9), not statistically significant. Umbrella review outcome-level evidence grade: Suggestive.
1 finding from 1 review
WMD -2.39 [-5.7, 0.9]
3 studies
GRADE not reported
Bone mineral density · children
Meta-analysis of randomised trials of vitamin D supplementation for Bone mineral density (Whole body / total), Healthy children: SMD 0.1 (95% CI -0.06 to 0.26), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.
1 finding from 1 review
SMD 0.1 [-0.06, 0.26]
5 studies
GRADE not reported
Hip/femoral bone mineral density (BMD) · children
Meta-analysis of randomised trials of vitamin D supplementation for Bone mineral density in hip, Healthy children: SMD 0.06 (95% CI -0.18 to 0.29), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.
1 finding from 1 review
SMD 0.06 [-0.18, 0.29]
4 studies
GRADE not reported
Bone mineral density · Older or community-dwelling adults
Meta-analysis of randomised trials of vitamin D supplementation for Bone mineral density, Community-dwelling adults: WMD -0.9 (95% CI -2.10 to 0.40), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
1 finding from 1 review
WMD -0.9 [-2.10, 0.40]
3 studies
GRADE not reported
Dental caries · children
Meta-analysis of randomised trials of vitamin D supplementation for Dental caries: RR 0.53 (95% CI 0.43 to 0.65), statistically significant. Umbrella review outcome-level evidence grade: Probable.
1 finding from 1 review
Insulin resistance · Adults with diabetes
Meta-analysis of randomised trials of vitamin D supplementation for Insulin resistance (Diabetes): SMD 0.16 (95% CI -0.11 to 0.42), not statistically significant. Umbrella review outcome-level evidence grade: No conclusion.
1 finding from 1 review
SMD 0.16 [-0.11, 0.42]
5 studies
GRADE not reported
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
Adverse events · people with sickle cell disease
1 finding from 1 review
Pain: presence of pain (slight or moderate) at 1 year · people with sickle cell disease
Vitamin D 100,000 IU/month showed no clear difference in presence of pain compared with 12,000 IU/month (moderate certainty).
1 finding from 1 review
Acute chest syndrome ( · people with sickle cell disease
1 finding from 1 review
Respiratory infections · people with sickle cell disease
1 finding from 1 review
HRQoL (using a validated scale) · people with sickle cell disease
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Total body BMD measured by DEXA (% change from baseline) · people with sickle cell disease
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