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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 CL0024

current versions

No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 1 · 100%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
Secondary (passive/secondhand) smoking exposure during childhood vs No secondary smoking exposure Caries incidence (early childhood caries) · Preschool children aged <=71 months (caries outcome assessed at 3-6 years) · Caries incidence by age 3 years (exposure from infancy, 4-18 months), Overall Secondary Smoking and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2025)	RR 1.45 [1.41, 1.49]	2 studies · 102,830 participants	Low