Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

276 questions · 296 findings · 37 reviews

No studies found 41 · 13.9%GRADE not reported 88 · 29.7%Very low 45 · 15.2%Low 74 · 25%Moderate 39 · 13.2%High 9 · 3%

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

Vitamin D plus calcium vs vitamin D

Healing of rickets (number) Definition: normal alkaline phosphatase and bone radiograph

Vitamin D plus calcium may leads to higher healing of rickets (number) Definition: normal alkaline phosphatase… compared with vitamin D (low certainty).

1 finding from 1 review

Calcium supplementation/fortification vs placebo (outcomes

Pre‐eclampsia · women who are not yet pregnant and women in the early stages of pregnancy

Calcium supplementation showed no clear difference in pre‐eclampsia compared with placebo (maternal outcomes) commencing before or early (low certainty).

1 finding from 1 review

Calcium supplementation/fortification vs placebo (outcomes

Pre‐eclampsia, or pregnancy loss, or stillbirth (or combination) at any gestational age · women who are not yet pregnant and women in the early stages of pregnancy

Calcium supplementation showed no clear difference in pre‐eclampsia, or pregnancy loss, or stillbirth (or combination) at… compared with placebo (maternal outcomes) commencing before or early (low certainty).

1 finding from 1 review

Calcium supplementation/fortification vs placebo (outcomes

Severe maternal morbidity and mortality index · women who are not yet pregnant and women in the early stages of pregnancy

Calcium supplementation showed no clear difference in severe maternal morbidity and mortality index compared with placebo (maternal outcomes) commencing before or early (low certainty).

1 finding from 1 review

Calcium supplementation/fortification vs placebo (outcomes

Pregnancy loss or stillbirth at any gestational age · women who are not yet pregnant and women in the early stages of pregnancy

Calcium supplementation showed no clear difference in pregnancy loss or stillbirth at any gestational age compared with placebo (maternal outcomes) commencing before or early (low certainty).

1 finding from 1 review

Calcium supplementation/fortification vs placebo (outcomes

Caesarean section · women who are not yet pregnant and women in the early stages of pregnancy

Calcium supplementation showed no clear difference in caesarean section compared with placebo (maternal outcomes) commencing before or early (low certainty).

1 finding from 1 review

Calcium hydroxide cement (Dycal) vs Calcium sulphate hemihydrate (DentoGen)

Radiological failure · Children with extensive decay involving the dental pulp in primary teeth

It is very uncertain whether calcium hydroxide cement (Dycal) changes radiological failure compared with calcium sulphate hemihydrate (DentoGen) (very low certainty).

1 finding from 1 review