Table 1.

Published estimated GFR equations in children

Equation name	Equation
Serum creatinine based
Schwartz et al.4 (ScrEq2009)	41.3Ht/Scr
Schwartz et al.11 (ScrEq2012)	42.3(Ht/Scr)0.79
Gao et al.12	68(Ht/Scr)-8(Ht/Scr)2+0.48age–21.53 in males or 25.68 in females
Pottel et al.13	107.3/(Scr/Q), Q=0.0270×Age+0.2329
Hoster et al.6	107.3/(Scr/Q), Q = 3.94 −13.4L +17.6L2 − 9.84L3+ 2.04L4
Serum cystatin C based
Bökenkamp et al.14	162/Scys)-30
Grubb et al.15	84.69Scys−1.68×1.384 for age<14 years
Filler et al.16	91.62(1/Scys)1.123
Schwartz et al.4 (ScysEq2009)	41.9(1.8/Scys)0.777
Schwartz et al.11 (ScysEq2012)	70.69Scys−0.931
Serum creatinine and cystatin C based
Bouvet et al.17	63.2(1.2/Scys)0.56 (1.09/Scr)0.35 (weight/45)0.3 (age/14)0.4
Schwartz et al.4 (ScrcysEq2009)	39.1 (Ht/Scr)0.516(1.8/Scys)0.294(30/BUN)0.1691.099male(ht/1.4)0.188
Schwartz et al.11 (ScrcysEq2012)	39.8 (Ht/Scr)0.456(1.8/Scys)0.418(30/BUN)0.0791.076male(ht/1.4)0.179
Chehade et al.18	42(Ht/Scr)-4(Ht/Scr)2−14.5Scys+0.69age+18.25 for female or 21.88 for male

Ht or L, height in m; Scr, serum creatinine in mg/dL; Scys, serum cystatin C in mg/L; BUN, blood urea nitrogen in mg/dl; age in years; weight in kg.