Table 1: Prevalence of eGFR category using 4 different estimating equations.

eGFR category, mL/min/1.73 m2GFR estimating equation, (%)
BIS1CKD-BIS2CKD-

≥75159 (12.3)622 (48.3)182 (14.1)432 (33.5)
60 to <75495 (38.4)358 (27.8)498 (38.6)430 (33.4)
45 to <60481 (37.3)209 (16.2)485 (37.6)284 (22.0)
<45154 (12.0)100 (7.8)124 (9.6)143 (11.1)

eGFR, estimated glomerular filtration rate; BIS, Berlin Initiative Study; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; cr, creatinine; cysc, cystatin C.