Figure 13.

Presentation of values for selected statistical parameters obtained from the linear regression analysis (β and r²), the coefficient of correlation ρ² from the linear regression analysis of the Bland–Altman difference δ vs. the average concentration of the analyte, and the Oldham–Eksborg ratio in (A); and for δ (%) and the CV_OE in (B). Lines combine symbols of the same example. Insets indicate the mean ± standard deviation of the statistical parameters from six examples (i.e., Nitrate, ADMA, AEA, hArg, BP, PEFR). Note the decadic logarithmic scale on the y axis in panel (B). See Figure 11.