Fig. 2.

Performance of three different sets of QC material measured by an experienced POCT staff using the JM-105® meter. Each result (individual point) is the average of three measurements (calculated by the TcB meter). Solid black line and corresponding error bars represent the mean ​± ​SD. Dashed lines represent the lower and upper acceptable limits of the QC range. At least two TcB meters were used to measure each set of QC.