Findings

What do systematic reviews say?

5 questions · 5 findings · 1 reviews · Oral Health

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No studies found 0 · 0%GRADE not reported 5 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Alzheimer’s disease · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.08 (95% CI 0.01 to 0.63) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
SMD (to OR) 0.08 [0.01, 0.63]
7 studies · 1005 participants
GRADE not reported

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Aggressive prostate cancer · Participants in observational studies

The meta-analysis of observational studies reported a OR of 0.88 (95% CI 0.68 to 1.15) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
OR 0.98 [0.84, 1.15]
6 studies · 4524 participants
GRADE not reported

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Tuberculosis · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.29 (95% CI 0.19 to 0.46) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
SMD (to OR) 0.29 [0.19, 0.46]
7 studies · 534 participants
GRADE not reported

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

Fracture · Participants in observational studies

The meta-analysis of observational studies reported a SMD (to OR) of 0.31 (95% CI 0.23 to 0.42) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
SMD (to OR) 0.31 [0.23, 0.42]
28 studies · 2956 participants
GRADE not reported

Higher circulating 25-hydroxyvitamin D (25(OH)D) concentration vs Lower circulating 25-hydroxyvitamin D (25(OH)D) concentration

All cause mortality (in CKD patients) · Participants in observational studies

The meta-analysis of observational studies reported a RR of 0.88 (95% CI 0.81 to 0.93) for higher versus lower circulating vitamin D concentration.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
RR 0.86 [0.81, 0.92]
10 studies · 6853 participants
GRADE not reported