Figure 1
From: Variation in red cell transfusion practice in the intensive care unit: a multicentre cohort study
Average pre-transfusion haemoglobin values over time in participating institutions. This figure illustrates all haemoglobin concentrations during the first 10 days of intensive care unit (ICU) stay. There was an average decrease of 16 g/l in haemoglobin concentrations in all patients admitted to the ICU over the 10-day monitoring interval. Institution 1 had the highest values over time while institution 3 recorded the lowest concentrations during the 10 days. The solid thick line illustrates overall concentrations.