Fig. 4.

(a) Scatter graph shows the correlation between the Roche Cobas Integra 400 enzyme creatinine (Roche-E-Cr) and Beckman Jaffe creatinine (Beckman-J-Cr) methods (n = 163, r2 = 0.934, p < 0.0001). (b) Bland-Altman plot shows agreement between the two methods (bias = −0.026 ± 0.07).