Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

260 questions · 265 findings · 20 reviews · Pregnancy and Childbirth

No studies found 57 · 21.5%GRADE not reported 29 · 10.9%Very low 77 · 29.1%Low 85 · 32.1%Moderate 16 · 6%High 1 · 0.4%

Oral iron vs placebo (Comparison 3)

All gastrointestinal symptoms Reported by the patients · women with postpartum iron deficiency anaemia

It is very uncertain whether oral iron changes all gastrointestinal symptoms Reported by the patients compared with placebo (Comparison 3) (very low certainty).

1 finding from 1 review