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Table 4 Performance for the original model and the intercept adjusted model in the overall population based on CKD-EPI equation defined chronic kidney disease

From: Validation of two prediction models of undiagnosed chronic kidney disease in mixed-ancestry South Africans

Performance

Korean risk score [10]

Thai risk score [9]

Model

Original

Adjusted

Original

Adjusted

    

Outcome

eGFR < 60

Any CKD

eGFR < 60

Any CKD

eGFR < 60

Any CKD

eGFR < 60

Any CKD

E/O (95 % CI)

0.10 (0.09-0.12)

0.10 (0.09-0.11)

0.80 (0.69-0.92)

0.79 (0.69-0.91)

1.25 (1.08-1.44)

1.18 (1.03-1.38)

1.04 (0.91-1.21)

1.03 (0.90-1.19)

Brier score

0.187

0.197

0.123

0.123

0.128

0.128

0.126

0.127

Yates slope

0.034

0.036

0.212

0.230

0.236

0.243

0.213

0.225

C-statistic (95 % CI)

0.850 (0.821-0.880)

0.863 (0.835-0.891)

0.850 (0.821-0.880)

0.863 (0.835-0.891)

0.808 (0.775-0.842)

0.820 (0.788-0.852)

0.808 (0.775-0.842)

0.820 (0.788-0.852)

Best threshold

0.02

0.02

0.22

0.22

0.25

0.27

0.22

0.23

Sensitivity (%)

81

82

81

82

71

72

71

72

Specificity (%)

82

82

82

82

85

86

85

86

  1. CKD; chronic kidney disease, eGFR, estimated glomerular filtration rate; E/O, Expected/Observed event rate; 95 % CI: 95 % confidence interval