Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

21 questions · 21 findings · 1 reviews · Developmental, Psychosocial and Learning Problems

No studies found 9 · 42.9%GRADE not reported 0 · 0%Very low 2 · 9.5%Low 6 · 28.6%Moderate 4 · 19%High 0 · 0%

Vitamin D vs placebo or no intervention

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

Vitamin D showed no clear difference in adverse effect: hypercalciuria As defined by trialistsTime frame:… compared with placebo or no intervention (moderate certainty).

1 finding from 1 review

Vitamin D vs placebo or no intervention

Hypercalcaemia · children under 5 years of age

It is very uncertain whether vitamin D changes adverse effect: hypercalcaemia As defined by trialistsTime frame:… compared with placebo or no intervention (very low certainty).

1 finding from 1 review

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

Vitamin D (higher dose) + micronutrient(s) vs vitamin D (lower dose) + micronutrient(s)

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

Vitamin D (higher dose) + micronutrient(s) showed no clear difference in adverse effect: hypercalciuria As defined by trialists Time frame: 3… compared with vitamin D (lower dose) + micronutrient(s) (low certainty).

1 finding from 1 review

Vitamin D (higher dose) + micronutrient(s) vs vitamin D (lower dose) + micronutrient(s)

Hypercalcaemia · children under 5 years of age

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

1 finding from 1 review