Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,126 questions · 1,225 findings · 111 reviews

No studies found 235 · 19.2%GRADE not reported 260 · 21.2%Very low 207 · 16.9%Low 271 · 22.1%Moderate 177 · 14.4%High 75 · 6.1%

Vitamin D (higher dose) vs vitamin D (lower dose)

Adverse effect: hypercalciuria As defined by trialists Time frame: 3 months · children under 5 years of age

Vitamin D (higher dose) showed no clear difference in adverse effect: hypercalciuria As defined by trialists Time frame:… compared with vitamin D (lower dose) (low certainty).

1 finding from 1 review

Vitamin D (higher dose) vs vitamin D (lower dose)

Hypercalcaemia · children under 5 years of age

Vitamin D (higher dose) showed no clear difference in adverse effect: hypercalcaemia As defined by trialists Time frame:… compared with vitamin D (lower dose) (low certainty).

1 finding from 1 review

Intramuscular vitamin K vs intravenous vitamin K

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

Intramuscular vitamin K showed no clear difference in intraventricular hemorrhage > Grade II: 0.2 mg IV versus 0.2 mg IM compared with intravenous vitamin K (low certainty).

1 finding from 1 review

Intramuscular vitamin K vs intravenous vitamin K

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

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

1 finding from 1 review

Intramuscular vitamin K vs intravenous vitamin K

Presence of PIVKA II at day 25 ‐ 0.2 mg IV versus 0.5 mg IM · preterm infants

Intramuscular vitamin K showed no clear difference in presence of PIVKA II at day 25 ‐ 0.2 mg IV versus 0.5 mg IM compared with intravenous vitamin K (low certainty).

1 finding from 1 review