CPT score | N (%) | N (%) tests avoided | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
---|---|---|---|---|---|---|
>25.0 | 586 (37.7) | 1171 (75.3) | 46.7 | 79.1 | 67.7 | 61.2 |
>20.0 | 764 (49.1) | 993 (63.8) | 58.0 | 70.2 | 64.7 | 64.0 |
>15.0 | 1018 (65.4) | 739 (47.5) | 72.3 | 55.5 | 60.4 | 68.1 |
>10.0 | 1239 (79.6) | 518 (33.3) | 81.3 | 39.6 | 55.9 | 69.3 |
>5.0 | 1456 (93.6) | 301 (19.3) | 91.1 | 24.8 | 53.2 | 74.8 |