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. 2020 Jun 30;1(8):731–739. doi: 10.34067/KID.0002252020

Table 2.

KidneyIntelX thresholds for the composite kidney end point with sensitivity, specificity, PPV and NPV for T2D and APOL1-HR populations in high- and low-risk strata

Threshold Risk Cutoff Sensitivity Specificity PPV NPV
T2D KidneyIntelX
 Bottom 50% 0.192 0.82 0.59 0.38 0.92
 Top 20% 0.444 0.50 0.89 0.58 0.86
 Top 15% 0.555 0.40 0.93 0.62 0.84
 Top 10% 0.707 0.29 0.96 0.68 0.82
T2D clinical model
 Bottom 50% 0.148 0.68 0.55 0.31 0.85
 Top 20% 0.240 0.38 0.85 0.43 0.82
 Top 15% 0.278 0.30 0.89 0.46 0.81
 Top 10% 0.338 0.23 0.94 0.54 0.80
APOL1-HR KidneyIntelX
 Bottom 50% 0.209 0.88 0.58 0.32 0.96
 Top 20% 0.438 0.60 0.89 0.56 0.91
 Top 15% 0.489 0.52 0.93 0.62 0.90
 Top 10% 0.546 0.36 0.96 0.66 0.87
APOL1-HR clinical model
 Bottom 50% 0.151 0.79 0.57 0.29 0.93
 Top 20% 0.322 0.42 0.85 0.38 0.87
 Top 15% 0.387 0.32 0.87 0.39 0.85
 Top 10% 0.448 0.22 0.93 0.40 0.84

Risk Cutoff, predicted probability of the composite kidney end point; PPV, positive predictive value; NPV, negative predictive value; T2D, type 2 diabetes; APOL1-HR, high-risk APOL1.