Table 6

Values of sensitivity, specificity and predictive values of the nomogram scores at different cut-off values

Nomogram score/predicted probabilitySpecificitySensitivityAccuracyPPVNPV
≥0.100.400.950.510.290.97
≥0.200.650.840.690.380.94
≥0.300.800.630.760.440.90
≥0.400.840.580.790.480.89
≥0.500.950.530.860.710.89
≥0.600.950.320.820.600.85
≥0.700.960.210.810.570.83
≥0.800.960.160.800.500.82
≥0.900.990.050.800.500.80
  • The predicted probability/nomogram score is a numeric value representing the prediction model score of the individual patient. The nomogram score can be used as a test parameter, and a positive test result can be defined as a score that is equal to or exceeds a specific cut-off value. A negative test result is defined as a score less than the cut-off value.

  • NPV, negative predictive value; PPV, positive predictive value.