Fig. 1

Correlations between mean values and corresponding coefficients of variation. Scatterplots Coefficients of variation (CV) plotted against mean values of the EXTEM assay from eight channels of clotting time (CT), clot formation time (CFT), alpha-angle, and maximum clot firmness (MCF), respectively. Two values in the CT scatterplot were outside the maximum range of the x-axis. Normal reference ranges are marked with vertical dotted lines. Spearman correlations with r-values are presented for each scatterplot