Table 4

 Parameters for prediction of outcome related to the different scores

Prediction scoreNo (%) of patientsSensitivity (%)Specificity (%)PPV (%)NPV (%)Patients correctlyclassified (%)
PPV, positive predictive value; NPV, negative predictive value.
—, data not applicable.
⩾0895 (100)10019.819.8
⩾1709 (79.2)10025.925.010040.6
⩾2501 (56.0)97.254.234.398.762.7
⩾3337 (37.7)90.475.347.597.078.3
⩾4238 (26.6)83.187.361.895.486.5
⩾5171 (19.1)74.094.476.693.690.4
⩾6111 (12.4)56.598.590.190.290.2
⩾777 (8.6)41.299.494.887.387.9
⩾828 (3.1)15.399.996.482.783.1
⩾97 (0.8)4.010010080.981.0
⩾100 (0)10080.280.2