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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Population

Intervention or exposure

Comparison

Outcome

Any field or review title

Field or topic

Source

Review versions

1 questions in 1 reviews · cluster CL0345

current versions

No studies 0 · 0%Ungraded 1 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

Question	Effect	Evidence	Status / GRADE
Vitamin D supplementation vs Placebo or control Dental caries · Children Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of… (2014)	RR 0.53 [0.43, 0.65]	38 studies · 1513 participants	Ungraded