Table 3 Modified 2 × 2 contingency table of brush biopsies using nylon brush compared to histology
Cytology Test: nylon brush | Histology | |||||
|---|---|---|---|---|---|---|
Positive for malignancy | Negative for malignancy | Total | ||||
Positive | 53 | Â | 1 | Â | 54 | Â |
Suspicious | 17 | 76 | 3 | 34 | 20 | 110 |
Doubtful | 6 | Â | 30 | Â | 36 | Â |
Negative | 5 | Â | 551 | Â | 556 | Â |
Total | 81 | Â | 585 | Â | 666 | Â |
Overall accuracy | 94.10% | Â | Â | Â | Â | Â |