Figure 2.

Bland and Altman comparison of serum S100 concentrations as measured by ELISA and Elecsys^® measurements. The x-axis represents the average measurement and the y-axis represents the difference (in μg/L) in measurements when these were made using ELISA and Elecsys^® methods. The mean difference ± 2 SDs are represented by horizontal complete and dotted lines respectively. The value of the R² for the regression line is 0.88.