Table 1.
Basic ultrasound (US) findings in study participants with thyroid nodules.
| Characteristics | Malignant | Benign | Total | P-value |
|---|---|---|---|---|
| Gender | 0.521 | |||
| Female | 17 (58.6%) | 24 (51.1%) | 41 (53.9%) | |
| Male | 12 (41.4%) | 23 (48.9%) | 35 (46.1%) | |
| Age | 51.69±11.99 | 48.34±13.84 | 49.62±13.19 | 0.285 |
| Size (mm) | 15.84±4.2 | 14.35±3.67 | 14.92±3.92 | 0.108 |
| Depth (mm) | 0.007* | |||
| Median | 16.90 | 14.30 | 15.20 | |
| Interquartile range (IQR) | 14.05–18.50 | 12.80–17.20 | 12.90–17.30 | |
| Shape | 0.004* | |||
| Taller than wide | 9 (31.0%) | 3 (6.4%) | 12 (15.8%) | |
| Wider than tall | 20 (69.0%) | 44 (93.6%) | 64 (84.2%) | |
| Margin | <0.001* | |||
| Well-defined | 8 (27.6%) | 36 (76.6%) | 44 (57.9%) | |
| Ill-defined | 21 (72.4%) | 11 (23.4%) | 32 (42.1%) | |
| Halo sign | 0.111 | |||
| Absent | 25 (86.2%) | 33 (70.2%) | 58 (76.3%) | |
| Present | 4 (13.8%) | 14 (29.8%) | 18 (23.7%) | |
| Echogenicity | <0.001* | |||
| Markedly hypoechoic | 17 (58.6%) | 7 (14.9%) | 24 (31.6%) | |
| Hypoechoic | 8 (27.6%) | 22 (46.8%) | 30 (39.5%) | |
| Isoechoic | 4 (13.8%) | 10 (21.3%) | 14 (18.4%) | |
| Hyperechoic | 0 (0.0%) | 8 (17.0%) | 8 (10.5%) | |
| Posterior acoustic feature | 0.278 | |||
| Enhancement | 2 (6.9%) | 9 (19.1%) | 11 (14.5%) | |
| Shadowing | 9 (31.0%) | 10 (21.3%) | 19 (25.0%) | |
| None | 18 (62.1%) | 28 (59.6%) | 46 (60.5%) | |
| Composition | 0.134 | |||
| Solid | 27 (93.1%) | 36 (76.6%) | 63 (82.9%) | |
| Cystic portion 0–50% | 2 (6.9%) | 7 (14.9%) | 9 (11.8%) | |
| Cystic portion ≥50% | 0 (0.0%) | 4 (8.5%) | 4 (5.3%) | |
| Calcification | 0.014* | |||
| Microcalcification | 17 (58.6%) | 12 (25.5%) | 29 (38.2%) | |
| Macrocalcification | 4 (13.8%) | 15 (31.9%) | 19 (25.0%) | |
| No | 8 (27.6%) | 20 (42.6%) | 28 (36.8%) |