Table 4.
Diagnostic Efficiency of MPV/PC Ratio and PDW
| Indicator | Optimal Cutoffs | Sensitivity | Specificity | AUC | 95% CI |
|---|---|---|---|---|---|
| Patients with nasopharyngeal carcinoma vs. those with benign tumors of the nasopharynx | |||||
| MPV/PC ratio | ≤0.03 | 63.46 | 63.24 | 0.665 | 0.616–0.712 |
| PDW | >0.15 | 79.81 | 45.41 | 0.614 | 0.564–0.663 |
| MPV/PC ratio+PDW | >0.64 | 49.04 | 83.24 | 0.708 | 0.660–0.752 |
| Patients with nasopharyngeal carcinoma vs. healthy subjects | |||||
| MPV/PC ratio | ≤0.04 | 85.10 | 70.99 | 0.869 | 0.830–0.902 |
| PDW | ≤0.16 | 74.52 | 63.58 | 0.716 | 0.667–0.761 |
| MPV/PC ratio+PDW | >0.67 | 76.92 | 95.06 | 0.909 | 0.875–0.936 |
Abbreviations: MPV/PC ratio, mean platelet volume/platelet count ratio; PDW, platelet distribution width; AUC, area under the receiver operating characteristic curve; CI, confidence interval.