Table II.
Comparison of diagnostic values of ultrasound and ultrasound combined with FNA in group A [n (%)].
| Diagnosis | Ultrasound | Ultrasound combined with FNA | χ2 value | P-value |
|---|---|---|---|---|
| Sensitivity | 52 (86.67) | 60 (100.00) | 8.571 | 0.003 |
| 8 (13.33) | 0 | |||
| Specificity | 2 (28.57) | 2 (28.57) | – | – |
| 5 (71.43) | 5 (71.43) | |||
| Accuracy rate | 54 (80.60) | 62 (92.54) | 4.107 | 0.043 |
| 13 (19.40) | 5 (7.46) | |||
| Positive predictive value | 52 (91.23) | 60 (92.31) | 0.047 | 0.828 |
| 5 (8.77) | 6 (7.69) | |||
| Negative predictive value | 2 (25.00) | 2 (100.00) | 4.800 | 0.109 |
| 6 (75.00) | 0 |
FNA, fine-needle aspiration.