Table I.
Equations used to calculate estimated glomerular filtration rate
| eGFR | Gender | Scys [mg/l] |
Scr [mg/dl] |
Equation |
|---|---|---|---|---|
| eGFRcr [13]a | Female | – | ≤ 0.7 | 144 × (Scr/0.7)–0.329 × 0.993Age [× 1.159 if black] |
| Female | – | > 0.7 | 144 × (Scr/0.7)–1.209 × 0.993Age [× 1.159 if black] | |
| Male | – | ≤ 0.9 | 141 × (Scr/0.9)–0.411 × 0.993Age [× 1.159 if black] | |
| Male | – | > 0.9 | 141 × (Scr/0.9)–1.209 × 0.993Age [× 1.159 if black] | |
| eGFRcys [13] | – | ≤ 0.8 | – | 133 × (Scys/0.8)–0.499 × 0.996Age [× 0.932 if female] |
| – | > 0.8 | – | 133 × (Scys/0.8)–1.328 × 0.996Age [× 0.932 if female] | |
| eGFRcr,cys [13] | Female | ≤ 0.8 | ≤ 0.7 | 130 × (Scr/0.7)–0.248 × (Scys/0.8)–0.375 × 0.995Age [× 1.08 if black] |
| Female | ≤ 0.8 | > 0.7 | 130 × (Scr/0.7)–0.601 × (Scys/0.8)–0.375 × 0.995Age [× 1.08 if black] | |
| Female | > 0.8 | ≤ 0.7 | 130 × (Scr/0.7)–0.248 × (Scys/0.8)–0.711 × 0.995Age [× 1.08 if black] | |
| Female | > 0.8 | > 0.7 | 130 × (Scr/0.7)–0.601 × (Scys/0.8)–0.711 × 0.995Age [× 1.08 if black] | |
| Male | ≤ 0.8 | ≤ 0.9 | 135 × (Scr/0.9)–0.207 × (Scys/0.8)–0.375 × 0.995Age [× 1.08 if black] | |
| Male | ≤ 0.8 | > 0.9 | 135 × (Scr/0.9)–0.601 × (Scys/0.8)–0.375 × 0.995Age [× 1.08 if black] | |
| Male | > 0.8 | ≤ 0.9 | 135 × (Scr/0.9)–0.207 × (Scys/0.8)–0.711 × 0.995Age [× 1.08 if black] | |
| Male | > 0.8 | > 0.9 | 135 × (Scr/0.9)–0.601 × (Scys/0.8)–0.711 × 0.995Age [× 1.08 if black] | |
| eGFRBIS1 [14] | – | – | – | 3736 × Scr–0.87 × Age–0.95 [× 0.82 if female] |
| eGFRBIS2 [14] | – | – | – | 767 × Scys–0.61 × Scr–0.40 × Age–0.57 [× 0.87 if female] |
BIS – Berlin Initiative Study, eGFR – estimated glomerular filtration rate, Scr – serum creatinine, Scys – serum cystatin-C.
a
This equation is also known as the CKD-EPI equation.