Table 4.
Logistic regression analysis of Asteria Scale parameter and B-mode risk factors in predicting malignancy of thyroid lesions (p-values were calculated by Chi-square tests).
| Parameter | Malignant if | OR | 95% CI | p-value | Accuracy (%) |
|---|---|---|---|---|---|
| Margins | = 0 | 10.77 | 6.12–18.97 | <0.001 | 78.69 |
| Markedly hypoechoic | = 1 | 5.12 | 2.58–10.18 | <0.001 | 72.13 |
| Microcalcifications | = 1 | 4.85 | 2.90–8.14 | <0.001 | 70.16 |
| Thyroid capsule infiltration | >0 | 3.20 | 1.84–5.57 | <0.001 | 69.18 |
| Macrocalcifications | = 1 | 3.01 | 1.74–5.19 | <0.001 | 68.52 |
| Asteria Scale | = 4 | 6.85 | 3.77–12.45 | <0.001 | 75.08 |
| “Halo” pattern | = 2 | 5.17 | 1.97–13.53 | <0.001 | 45.25 |
| Composition (solid) | = 3 | 2.00 | 1.20–3.33 | 0.007 | 54.10 |
| Tall/wide | >= 1 | 2.02 | 1.22–3.36 | 0.006 | 54,75 |