Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

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

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%

Electromagnetic‐guided vs endoscopic‐guided postpyloric placement of nasoenteral feeding tubes

Adverse events

Electromagnetic‐guided showed no clear difference in adverse events compared with endoscopic‐guided postpyloric placement of nasoenteral feeding tubes (moderate certainty).

1 finding from 1 review

Bottle-feeding only vs Breastfeeding only

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

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

1 finding from 1 review

Low parental socioeconomic status (SES) vs High parental socioeconomic status (SES)

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

No significant difference in caries odds was found between children of low- versus high-SES parents (meta-analysis reported no difference; pooled estimate in an unavailable supplementary figure; not GRADE-rated).

1 finding from 1 review

Intervention not reported

Dental caries prevalence · General population (children and adults) in East Africa

Caries prevalence in permanent dentition (>=12 years) was 50.2% (95% CI 38.4 to 62.1); certainty not graded.

1 finding from 1 review

Poor / no tooth brushing habit vs Good tooth brushing habit

Dental caries · Individuals in East Africa assessed for dental caries

Poor tooth brushing was associated with significantly higher odds of dental caries (OR 1.967, 95% CI 1.205 to 3.211); certainty not graded.

1 finding from 1 review