Subjects Measured GFR/CKD-EPI Measured GFR/C-G Hbss (n=79) R value 0.598 0.667 P- value <0.001 <0.001 Hbsc (n=21) R value 0.848 0.819 P- value <0.001 <0.001

Table 3: Correlation of measured and calculated GFR in HBSS and HBSC