Early childhood caries (ECC) vs Caries-free controls: Hemoglobin (Hb) level at the end of the study
Hemoglobin levels were significantly lower in children with ECC than in caries-free children (mean difference -9.96, 95% CI -15.45 to -4.46); ungraded.
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Early childhood caries (ECC) vs ECC-free children (caries-free controls) Hemoglobin (HGB) level · Preschool children (<6 years) · Overall Hemoglobin levels were significantly lower in children with ECC than in caries-free children (mean difference -9.96, 95% CI -15.45 to -4.46); ungraded. Iron deficiency and early childhood caries: a systematic review and meta-analysis. (2021) All outcomes | WMD -9.96 [-15.45, -4.46] | 5 studies · 924 participants | GRADE not reported |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Iron deficiency and early childhood caries: a systematic review and meta-analysis. 2021 All outcomes | March 2020 to September 2020 | 11 | Not applicable |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.