Findings

What do systematic reviews say?

5 questions · 5 findings · 3 reviews · Metabolic and Endocrine Disorders

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No studies found 3 · 60%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 20%Moderate 1 · 20%High 0 · 0%

Vitamin D vs placebo or no intervention

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

Vitamin D supplementation for prevention of cancer in adults 2014 · Cochrane Headline outcomes only
RR 0.93 [0.88, 0.98]
15 studies · 49866 participants
Low

Vitamin D plus calcium vs vitamin D

All‐cause mortality

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin D, calcium or a combination of vitamin D and calcium for the treatment of nutritional rickets in children 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin D plus calcium vs calcium

All‐cause mortality

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin D, calcium or a combination of vitamin D and calcium for the treatment of nutritional rickets in children 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

All‐cause mortality in trials using vitamin D3 (cholecalciferol) ( · adults

The intervention probably leads to lower all‐cause mortality in trials using vitamin D3 (cholecalciferol) ( (moderate certainty).

1 finding from 1 review

Vitamin D supplementation for prevention of mortality in adults 2014 · Cochrane Headline outcomes only
RR 0.94 [0.91, 0.98]
38 studies · 75927 participants
Moderate

Intervention not reported

All‐cause mortality

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin D, calcium or a combination of vitamin D and calcium for the treatment of nutritional rickets in children 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found