Fig. 5From: Systematic reviews and meta-analyses comparing mortality in restrictive and liberal haemoglobin thresholds for red cell transfusion: an overview of systematic reviewsRelative risks (95% CI) for mortality from meta-analyses comparing restrictive and liberal red cell transfusion thresholds. ND = not defined; †, odds ratios presented; *, odds ratio recalculated to reflect 30-day mortalityBack to article page