From: Diagnostic accuracy of ultrasound characteristics in the identification of malignant thyroid nodules
Ultrasound characteristic | Malignant, n (%) | Benign, n (%) | Total, n (%) | Crude odds ratio (95% CI) | p value |
---|---|---|---|---|---|
Size (cm) | |||||
 ≥ 2 | 14 (12.1) | 102 (87.9) | 116 (100.0) | 0.9 (0.4–1.9) | 0.854 |
 < 2 | 19 (12.9) | 128 (87.1) | 147 (100.0) |  |  |
Taller than wide | |||||
 Taller than wide | 16 (18.8) | 69 (81.2) | 85 (100.0) | 2.3 (1.0–4.6) | 0.046 |
 Wider than tall | 17 (9.6) | 161 (90.4) | 178 (100.0) |  |  |
Echogenicity | |||||
 Hypoechogenicity | 22 (27.5) | 58 (72.5) | 80 (100.0) | 5.9 (2.7–12.9) | < 0.001 |
 Iso/hyperechogenicity | 11 (6.0) | 172 (94.0) | 183 (100.0) |  |  |
Consistency | |||||
 Solid | 32 (13.7) | 202 (86.3) | 234 (100.0) | 4.4 (0.6–33.7) | 0.145 |
 Cystic | 1 (3.4) | 28 (96.6) | 29 (100.0) |  |  |
Borders | |||||
 Irregular | 12 (38.7) | 19 (61.3) | 31 (100.0) | 6.3 (2.7–14.9) | < 0.001 |
 Regular | 21 (9.1) | 211 (90.9) | 232 (100.0) |  |  |
Halo | |||||
 Absent halo | 26 (17.9) | 119 (82.1) | 145 (100.0) | 3.5 (1.4–8.3) | 0.004 |
 Halo present | 7 (5.9) | 111 (94.1) | 118 (100.0) |  |  |
Calcification | |||||
 Micro-calcification | 12 (60.0) | 8 (40.0) | 20 (100.0) | 15.9 (5.8–43.1) | < 0.001 |
 No micro-calcification | 21 (8.6) | 222 (91.4) | 243 (100.0) |  |  |
Vascularity | |||||
 Internal vascularity | 16 (25.0) | 48 (75.0) | 64 (100.0) | 3.6 (1.7–7.6) | 0.002 |
 No internal vascularity | 17 (8.5) | 182 (91.5) | 199 (100.0) |  |  |