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Table 4 Validation value of the derivation set and the validation set

From: Prediction of acute kidney injury following coronary artery bypass graft surgery in elderly Chinese population

Data set

Sensitivity (%)

Specificity (%)

NPV (%)

PPV (%)

Accuracy (%)

The derivation set

67.3

71.3

91.6

31.9

70.6

The validation set

71.1

63.5

91.1

29.5

64.9

  1. Abbreviations: NPV, negative predictive value; PPV, positive predictive value