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Evidence found and GRADE certainty

3,747 questions · 3,943 findings · 594 reviews

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No studies found 784 · 19.9%GRADE not reported 530 · 13.4%Very low 1,040 · 26.4%Low 981 · 24.9%Moderate 444 · 11.3%High 164 · 4.2%

Dental caries assessment (WHO/clinical diagnostic criteria; caries = DMFT>0) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Dental caries prevalence · 12-year-old children (permanent dentition) in Africa

Pooled caries prevalence in Uganda was 0.27 (95% CI 0.126 to 0.418; 3 article(s); not GRADE-rated).

23 findings from 1 review
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Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Dental caries · 12-year-old children (permanent dentition) in Africa

Pooled mean DMFT in Sudan was 0.49 (95% CI 0.461 to 0.519; 1 article(s); not GRADE-rated).

22 findings from 1 review
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Mixed breast- and bottle-feeding vs Bottle feeding

Early childhood caries (ECC) · Healthy children under 6 years in South Africa

No significant difference in caries odds was found between mixed breast-and-bottle-fed and bottle-fed-only children (meta-analysis reported no difference; pooled estimate in an unavailable supplementary figure; not GRADE-rated).

1 finding from 1 review

Not applicable (single-group prevalence) vs Not applicable

Dental caries prevalence · Children aged 12 years (plus or minus one year) in Africa

The pooled dental-caries prevalence was 0.3657 (95% CI 0.3065 to 0.4250); GRADE was not reported.

2 findings from 1 review

Not applicable (single-group prevalence) vs Not applicable

Caries experience (mean DMFT) · Children aged 12 years (plus or minus one year) in Africa

The pooled mean DMFT score was 1.0900 (95% CI 0.9143 to 1.2657); GRADE was not reported.

2 findings from 1 review

Higher parental education (tertiary) vs Parental high school (secondary) education

Early childhood caries (ECC) · Healthy children under 6 years in South Africa

Parental tertiary education (vs high-school education) was associated with about 1.8 times higher odds of early childhood caries in South Africa (OR 1.77, 95% CI 1.22-2.57; 2 studies; not GRADE-rated).

1 finding from 1 review