Table 2 Comparison of frozen section with final (paraffin) for the evaluation of margins of oral squamous cell carcinoma
Variables | Frozen section margin status | Final (paraffin) section margin status | Sensitivity | Specificity | PPV | NPV | Diagnostic accuracy | |
|---|---|---|---|---|---|---|---|---|
Positive | Negative | |||||||
Overall | Positive | 119 | 6 | 88.81% | 94.84% | 95.20% | 88.10% | 91.63% |
Negative | 15 | 111 | ||||||