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Comparison of diagnostic values of FNA and ultrasound combined with FNA in group B [n (%)].
| Diagnosis | FNA | Ultrasound combined with FNA | χ2 value | P-value |
|---|---|---|---|---|
| Sensitivity | 87 (100.00) | 87 (100.00) | – | – |
| 0 | 0 | |||
| Specificity | 6 (54.55) | 7 (63.64) | 0.188 | 0.665 |
| 5 (45.45) | 4 (36.37) | |||
| Accuracy | 93 (94.90) | 94 (97.96) | 0.117 | 0.733 |
| 5 (5.10) | 2 (2.04) | |||
| Positive predictive value | 87 (94.57) | 87 (95.92) | 0.106 | 0.745 |
| 5 (5.43) | 4 (4.08) | |||
| Negative predictive value | 6 (100.00) | 7 (100.00) | – | – |
| 0 | 0 |
FNA, fine-needle aspiration.
