Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

195 questions · 224 findings · 12 reviews · Oral Health

No studies found 14 · 6.3%GRADE not reported 171 · 76.3%Very low 17 · 7.6%Low 20 · 8.9%Moderate 2 · 0.9%High 0 · 0%

EMP + CAF vs CAF

Attachment change · Adult patients with single (localised) recession-type defects (Miller Class I/II, at least 3 mm)

EMP + CAF showed no clear difference in clinical attachment level change compared with CAF (low certainty).

2 findings from 1 review

GTR rm associated with bone substitutes + CAF vs SCTG + CAF

Keratinized tissue width change · Adult patients with single (localised) recession-type defects (Miller Class I/II, at least 3 mm)

GTR rm associated with bone substitutes + CAF led to lower keratinized tissue width change compared with SCTG + CAF; GRADE not reported.

1 finding from 1 review

GTR rm + CAF vs SCTG + CAF

Patients' preference for a specific procedure · Adult patients with single (localised) recession-type defects (Miller Class I/II, at least 3 mm)
1 finding from 1 review

GTR rm associated with bone substitutes + CAF vs GTR rm + CAF

Aesthetic condition change related to patient's opinion · Adult patients with single (localised) recession-type defects (Miller Class I/II, at least 3 mm)

The review found no eligible studies for this question.

1 finding from 1 review

GTR rm associated with bone substitutes + CAF vs SCTG + CAF

Aesthetic condition change related to patient's opinion · Adult patients with single (localised) recession-type defects (Miller Class I/II, at least 3 mm)
1 finding from 1 review

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

Prostate cancer · Adults (general population)

Meta-analysis of observational studies (higher vs lower 25(OH)D) for Prostate cancer: OR 1.04 (95% CI 0.98 to 1.09), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.

1 finding from 1 review

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

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 vs placebo or control

Fasting blood glucose (mg/dL) · Adults with diabetes

Meta-analysis of randomised trials of vitamin D supplementation for Fasting glucose (Diabetes patients with normal glucose tolerance): WMD 0.01 (95% CI -0.21 to 0.23), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.

2 findings from 1 review

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

Type 2 diabetes mellitus · Adults (general population)

Meta-analysis of observational studies (higher vs lower 25(OH)D) for Type 2 diabetes: OR 0.63 (95% CI 0.56 to 0.69), statistically significant. Umbrella review outcome-level evidence grade: Suggestive.

1 finding from 1 review