Table 4.

Predictive performance in the validation set of 109 individuals of a longitudinal estimating equation for GFR incorporating a previous direct GFR measurement

ModeleGFRBias (%)95% Limits of Agreement (%)Correlation% within 30%% within 10%
I45.19 ± 14.454.6−32.5, 62.00.818138
IIa43.60 ± 14.550.5−28.6, 41.60.888848
IIb44.24 ± 14.162.4−32.9, 56.20.838041
IIc45.39 ± 14.804.9−32.3, 62.40.808134
III43.53 ± 14.450.4−28.9, 41.80.888647
IV43.22 ± 14.42−0.3−29.5, 41.00.888639
  • Validation set has 109 individuals with mean iGFR = 43.72 ± 15.31 ml/min per 1.73 m2. eGFR, estimated GFR.