Comparative Performance of Creatinine-Based Estimated Glomerular Filtration Rate Equations in the Malays: A Pilot Study in Tertiary Hospital in Malaysia

Table 4

Mean, bias, precision, and accuracy of GFR estimates within two GFR subgroups.

Variable	GFR < 60 ml/min/1.73 m^2	GFR ≥ 60 ml/min/1.73 m^2  (
GFR⁢; (ml/min/1.73 m^2)
Measured	33.19 ± 10.39	78.32 ± 22.61
CGBSA	33.53 ± 10.79	68.92 ± 21.10
4-MDRD	30.24 ± 10.27	59.10 ± 21.35
CKD-EPI	30.95 ± 11.14	63.00 ± 23.49
Median bias
CGBSA	−0.99 (−9.6, 19.81)	−9.80 (−33.00, 27.35)
4-MDRD	−2.60 (−17.10, 10.20)	−19.70 (−55.80, 23.60)
CKD-EPI	−1.80 (−15.10, 13.20)	−14.70 (−48.80, 32.60)
Mean difference
CGBSA	0.34 ± 7.04	−9.40 ± 18.53
4-MDRD	−2.95 ± 6.13	19.22 ± 20.11
CKD-EPI	−2.24 ± 6.22	−15.32 ± 20.86
Accuracy within 10
CGBSA	24.4	40.0
4-MDRD	31.7	20.0
CKD-EPI	31.7	10.0
Accuracy within 30
CGBSA	63.4	70.0
4-MDRD	65.9	80.0
CKD-EPI	65.9	80.0

Mean CGBSA GFR versus measured GFR , mean 4-MDRD GFR versus measured GFR , and mean CKD-EPI GFR versus measured GFR .
Mean CGBSA GFR versus measured GFR , mean 4-MDRD GFR versus measured GFR , and mean CKD-EPI GFR versus measured GFR .