Fig. 4
From: Normal values for pancreatic stone protein in different age groups
Comparison of capillary and venous Pancreatic Stone Protein (PSP) concentrations. a Scatter plot comparing capillary and venous PSP concentrations. The bisecting line is shown (straight line, indicating 100 % agreement). The correlation coefficient of the Spearman’s rank test (Rho) is given. b Bland-Altman plot showing the difference between logarithmically transformed capillary to venous Pancreatic Stone Protein (PSP) concentration plotted against the average of capillary and venous concentration. Bias (mean difference, dotted line) and 95 %-limits of agreement (dashed lines) are shown. The units shown indicate logarithms (base 10) of PSP concentrations (ng/ml)