Determination of the Taiwanese eGFR equations in the development set.

<p>Taiwanese eGFR equations were derived by using linear regression of the differences on the average (i.e. the extended Bland-Altman plot). C_in and the eGFR equations were log-transformed and plotted on the log-scale. The regression line (thin solid line) and its 95% prediction interval (dotted lines) were plotted along with the identity (thick solid diagonal) line. (A) The regression equation of the Taiwanese MDRD equation was 1.309×MDRD^0.912 in the (anti-logged) original unit. (B) The regression equation of the Taiwanese CKD-EPI equation was 1.262×CKD-EPI^0.914 in the original unit. (C) The regression equation of the Taiwanese four-level CKD-EPI equation was 1.205×four-level CKD-EPI^0.914 in the original unit.