Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

780 questions · 834 findings · 76 reviews

No studies found 187 · 22.4%GRADE not reported 164 · 19.7%Very low 144 · 17.3%Low 172 · 20.6%Moderate 105 · 12.6%High 62 · 7.4%

Prenatal vitamin D deficiency (low maternal 25(OH)D during pregnancy) vs Adequate prenatal vitamin D (sufficient maternal 25(OH)D)

Dental caries in children · Infants and children (aged about 2 to 8 years) whose mothers' vitamin D status was assessed during pregnancy

For prenatal vitamin D measured across gestational weeks 6-38, the OR of dental caries was 1.32 (no CI reported); ungraded.

3 findings from 1 review

Prenatal vitamin D deficiency (low maternal 25(OH)D during pregnancy) vs Adequate prenatal vitamin D (sufficient maternal 25(OH)D)

Dental caries in children · Children aged 6 to 8 years whose mothers' prenatal vitamin D status was assessed

In the single study of children aged 6-8 years, the association was not statistically significant (OR 1.07, 95% CI 0.84-1.30); ungraded.

1 finding from 1 review

Prenatal vitamin D deficiency (low maternal 25(OH)D during pregnancy) vs Adequate prenatal vitamin D (sufficient maternal 25(OH)D)

Dental caries in children · Children aged 4 to 6 years whose mothers' prenatal vitamin D status was assessed

Among children aged 4-6 years, prenatal vitamin D deficiency is associated with significantly higher odds of dental caries (OR 1.44, 95% CI 1.32-1.56); ungraded.

1 finding from 1 review

Prenatal vitamin D deficiency (maternal 25(OH)D measured at gestational weeks 24 to 38) vs Adequate prenatal vitamin D (sufficient maternal 25(OH)D)

Dental caries in children · Infants and children (aged about 2 to 8 years) whose mothers' vitamin D status was assessed during pregnancy

For prenatal vitamin D measured across gestational weeks 24-38, the OR of dental caries was 1.30 (no CI reported); ungraded.

1 finding from 1 review

Higher dose vitamin K vs lower dose vitamin K

Intraventricular hemorrhage > Grade II: 0.2 mg IM versus 0.5 mg IM · preterm infants

Higher dose vitamin K showed no clear difference in intraventricular hemorrhage > Grade II: 0.2 mg IM versus 0.5 mg IM compared with lower dose vitamin K (low certainty).

1 finding from 1 review

Vitamin D plus calcium vs vitamin D

Adverse events (number) Asymptomatic hypercalcaemia and hypercalciuria

It is very uncertain whether vitamin D plus calcium changes adverse events (number) Definition: asymptomatic hypercalcaemia and… compared with vitamin D (very low certainty).

1 finding from 1 review