Table 2.
Receiver operating characteristic curve analysis of lymphocyte count, anti-CA I and II antibody levels, and their sensitivity, specificity, and positive and negative predictive values
| AUC | Cut-off point | Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|---|---|
| Anti-CA I Ab | 0.721 (0.605-0.819) |
> 0.072 | 95 (79-98) |
43 (27-61) |
61 (47-74) |
80 (56-94) |
| Anti-CA II Ab | 0.526 (0.407-0.644) |
> 0.047 | 46 (30-63) |
84 (68-94) |
74 (52-90) |
61 (48-75) |
| Lymphocyte count | 0.993 (0.938-1.00) |
> 0.349 | 100 (91-100) |
97 (86-100) |
97 (86-100) |
100 (90-100) |
Sensitivity, specificity, PPV and NPV values were expressed as % within a 95% CI
AUC – area under the curve, PPV – positive predictive value, NPV – negative predictive value