Table 1 Thyroid nodules ultrasound features
From: Malignancy risk of thyroid nodules: quality assessment of the thyroid ultrasound report
Ultrasound features | Total n (%) | NUTS2 North n (%) | NUTS2 Center n (%) | NUTS2 Lisbon n (%) | p value |
|---|---|---|---|---|---|
Number of participants | 344 (100%) | 98 (28.5%) | 77 (22.4%) | 169 (49.1%) | – |
Shape | 28 (8.1%) | 6 (6.1%) | 11 (14.3%) | 11 (6.5%) | 0.081 |
Margins | 86 (25.0%) | 22 (22.4%) | 13 (16.9%) | 51 (30.2%) | 0.065 |
Composition | 263 (76.5%) | 74 (75.5%) | 50 (64.9%) | 139 (82.2%) | 0.012 |
Echogenicity | 183 (53.2%) | 38 (38.8%) | 39 (50.6%) | 106 (62.7%) | 0.001 |
Echogenic foci | 72 (20.9%) | 20 (20.4%) | 19 (24.7%) | 33 (19.5%) | 0.647 |
Marked hypoechogenicity | 4 (1.2%) | 0 | 2 (2.6%) | 2 (1.2%) | 0.282 |
Microcalcifications | 20 (5.8%) | 7 (7.1%) | 8 (10.4%) | 5 (3.0%) | 0.056 |
Irregular margins | 12 (3.5%) | 4 (4.1%) | 3 (3.9%) | 5 (3.0%) | 0.869 |
Non-oval shape | 0 | 0 | 0 | 0 | – |
Score | |||||
0 | 11 (3.2%) | 0 | 9 (11.7%) | 2 (1.2%) | < 0.001 |
1 | 39 (11.3%) | 8 (8.2%) | 8 (10.4%) | 23 (13.6%) | |
2 | 109 (31.7%) | 44 (44.9%) | 28 (36.4%) | 37 (21.9%) | |
3 | 110 (32.0%) | 30 (30.6%) | 22 (28.6%) | 58 (34.3%) | |
4 | 51 (14.8%) | 11 (11.2%) | 8 (10.4%) | 32 (18.9%) | |
5 | 18 (5.2%) | 5 (5.1%) | 2 (2.6%) | 11 (6.5%) | |
6 | 6 (1.7%) | 0 | 0 | 6 (3.6%) | |
≥ 4 | 75 (21.8%) | 16 (16.3%) | 10 (13.0%) | 49 (29.0%) | 0.005 |