Table IV.
Comparison of diagnostic values of ultrasound and ultrasound combined with FNA in group B [n (%)].
| Diagnosis | Ultrasound | Ultrasound combined with FNA | χ2 value | P-value |
|---|---|---|---|---|
| Sensitivity | 84 (96.55) | 87 (100.00) | 3.053 | 0.081 |
| 3 (3.45) | 0 | |||
| Specificity | 8 (72.73) | 7 (63.64) | 0.210 | 0.647 |
| 3 (27.28) | 4 (36.37) | |||
| Accuracy | 92 (93.88) | 94 (97.96) | 0.422 | 0.516 |
| 6 (6.12) | 2 (2.04) | |||
| Positive predictive value | 84 (96.55) | 87 (95.61) | 0.106 | 0.745 |
| 3 (3.45) | 4 (4.39) | |||
| Negative predictive value | 8 (72.73) | 7 (100.00) | 2.291 | 0.245 |
| 3 (27.27) | 0 |
FNA, fine-needle aspiration.