Fig. 3From: Performance of point-of-care international normalized ratio measurement to diagnose trauma-induced coagulopathyBland and Altman plot. The difference between the laboratory INR (lab-INR) and the point-of-care INR (POC-INR) is plotted against the mean of lab-INR and POC-INR for 98 paired measurements in the study. For each data point, the mean value [(lab-INR + POC-INR)/2] is on the x axis and the difference (lab-INR – POC-INR) on the y axisBack to article page