Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

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No studies found 1 · 50%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 50%Moderate 0 · 0%High 0 · 0%

Intravenous iron vs oral iron

Blood transfusion · people with preoperative anaemia awaiting major surgery

The review found no eligible studies for this question.

1 finding from 1 review

Iron therapy for preoperative anaemia 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Iron therapy vs No treatment, placebo, usual care, or another oral care measure

Blood transfusion · people with preoperative anaemia awaiting major surgery

Iron therapy showed no clear difference in proportion of participants who received a blood transfusion compared with placebo, no treatment or standard care (low certainty).

1 finding from 1 review

Iron therapy for preoperative anaemia 2019 · Cochrane Headline outcomes only
RR 1.21 [0.87, 1.7]
4 studies · 200 participants
Low