Fig. 3From: Iron supplementation to treat anaemia in adult critical care patients: a systematic review and meta-analysisEffect of iron supplementation, by any route, on primary outcomes a requirement for RBC transfusion, b mean number of RBC units transfused and mean difference in Hb concentration at c short-term follow-up (upto 10 days) and d medium-term follow-up (last measured time point in hospital or end of the trial). RBC red blood cell, Hb haemoglobin, CI confidence interval, M-H Mantel-Haenszel test, IV inverse varianceBack to article page