Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

480 questions · 494 findings · 38 reviews

No studies found 118 · 23.9%GRADE not reported 54 · 10.9%Very low 176 · 35.6%Low 99 · 20%Moderate 34 · 6.9%High 13 · 2.6%

Growth stunting (linear growth retardation, low height-for-age) vs Children without growth stunting (normal height-for-age)

Early childhood caries (ECC) · Children aged ≤6 years (early childhood)

One Nigerian cross-sectional study reported a significant adjusted association between nutritional (stunting) status and ECC (APR 0.14, 95% CI 0.03-0.69); ungraded.

4 findings from 1 review
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Early childhood caries / severe early childhood caries vs Caries-free controls

Change in height-for-age z score · Children aged ≤6 years (early childhood)

The association between baseline caries and declining height-for-age persisted after adjustment (coefficient -0.02); ungraded.

1 finding from 1 review

Early childhood caries / severe early childhood caries vs Caries-free controls

Stunting · Children aged ≤6 years (early childhood)

One Nepalese cross-sectional study found caries severity significantly correlated with chronic malnutrition/stunting (HAZ; p<0.0001), especially in rural children; ungraded, no effect size reported.

3 findings from 1 review

Early childhood caries / severe early childhood caries vs Caries-free controls

Risk of malnutrition (younger children, 6 months to 6 years) · Children aged ≤6 years (early childhood)

One Nepalese cross-sectional study found no significant association between severe ECC and malnutrition risk in children under 6 (mean difference 0.13, p=0.609); ungraded.

1 finding from 1 review

Higher‐dose anticoagulants vs lower‐dose anticoagulants

Necessity for additional respiratory support · people hospitalised with COVID‐19

It is very uncertain whether higher‐dose anticoagulants changes necessity for additional respiratory support compared with lower‐dose anticoagulants (very low certainty).

1 finding from 1 review