Agreement between cystatin-C and creatinine based eGFR estimates after a 12-month exercise intervention in patients with chronic kidney disease

Table 1 eGFR equations

Name	Sex	Cr	Cys	Equation
MDRD (2006) [18]				175xcr^-1.154xage^-0.203(× 0.742,if female)(× 1.212,if black)
CKD-EPIcr (2009) [6]	F	≤0.7		144x(cr/0.7)^-0.329 × 0.993^age(× 1.159,if black)
		>0.7		144x(cr/0.7)^-1.209 × 0.993^age(× 1.159,if black)
	M	≤0.9		141x(cr/0.9)^-0.411 × 0.993^age(×1.159,if black)
		>0.9		141x(cr/0.9)^-1.209 × 0.993^age(×1.159,if black)
CKD-EPIcys (2012) [7]	F		≤0.8	133x(cys/0.8^)-0.499 × 0.996^agex0.932
			>0.8	133x(cys/0.8^)-1.328 × 0.996^agex0.932
	M		≤0.8	133x(cys/0.8^)-0.499 × 0.996^age
			>0.8	133x(cys/0.8^)-1.328 × 0.996^age
CKD-EPIcr-cys (2012) [7]				130x(cr/0.7)-0.248x(cys/0.8)-0.375 × 0.995age(×1.08,if black)

MDRD modification of diet in renal disease, CKD-EPI chronic kidney disease epidemiology collaboration, cr creatinine, cys cystatin-C, F female, M male

ISSN: 1471-2369