Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

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No studies found 0 · 0%GRADE not reported 2 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Vitamin D vs placebo or control

Lumbar spine bone mineral density (BMD) · Older or community-dwelling adults

Meta-analysis of randomised trials of vitamin D supplementation for Bone mineral density in lumbar spine, Community-dwelling adults: WMD 0.10 (95% CI -0.60 to 0.70), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
Community-dwelling adults
WMD 0.10 [-0.60, 0.70]
7 studies
GRADE not reported

Vitamin D vs placebo or control

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

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
Healthy children
SMD 0.15 [-0.01, 0.31]
5 studies
GRADE not reported