Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

3,092 questions · 3,199 findings · 339 reviews · Headline outcomes only

No studies found 714 · 22.3%GRADE not reported 181 · 5.7%Very low 695 · 21.7%Low 908 · 28.4%Moderate 568 · 17.8%High 133 · 4.2%

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

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