Table 1.
Baseline demography of five pathology types divided into malignant and benign groups.
| Pathological Types | ||||||
|---|---|---|---|---|---|---|
| Malignant Group (n = 421) |
Benign Group (n = 391) | |||||
| PTC | FVPTC | FTC | HCC | Benign | p-Value | |
| Number of patients | 214 | 114 | 70 | 23 | 391 | |
| Age (years), mean (SD) | 47.36 ± 13.70 | 44.90 ± 15.12 | 46.61 ± 17.10 | 51.17 ± 15.62 | 54.18 ± 13.15 | <0.0001 |
| Sex (n, %) | ||||||
| Male | 53 (25) | 28 (25) | 15 (21) | 4 (17) | 80 (20) | 0.6985 |
| Female | 161 (75) | 86 (75) | 55 (79) | 19 (83) | 311 (80) | |
| Number of US images | 470 | 215 | 131 | 38 | 937 | |
| Number of cropped images | 533 | 272 | 175 | 53 | 1275 | |
| Location (n, %) | ||||||
| Left | 88 (41.12) | 52 (45.61) | 39 (55.71) | 13 (56.52) | 143 (36.57) | 0.0017 |
| Right | 109 (50.93) | 57 (50.00) | 27 (38.57) | 10 (43.48) | 192 (49.10) | |
| Both (Left + Right) | 11 (5.15) | 4 (3.51) | 1 (1.43) | 0 (0.00) | 47 (12.03) | |
| Isthmus | 6 (2.80) | 1 (0.88) | 3 (4.29) | 0 (0.00) | 9 (2.30) | |
| Ultrasound brands (%) | ||||||
| Aloka | 3.93 | 2.46 | 6.67 | 0.00 | 7.57 | <0.0001 |
| GE Healthcare | 37.12 | 62.30 | 64.01 | 78.26 | 45.87 | |
| Hitachi | 7.42 | 2.46 | 1.33 | 0.00 | 7.34 | |
| Philips | 4.37 | 0.82 | 8.00 | 8.70 | 2.06 | |
| Siemens | 28.82 | 10.66 | 5.33 | 8.70 | 18.81 | |
| Toshiba | 17.90 | 16.39 | 13.33 | 4.34 | 18.12 | |
| Others | 0.44 | 4.91 | 1.33 | 0.00 | 0.23 | |
Continuous data are expressed as the mean and standard deviation (SD); categorical data are expressed as a percentage (%). Papillary thyroid carcinoma (PTC), follicular thyroid carcinoma (FTC), follicular variant of papillary thyroid carcinoma (FVPTC), Hürthle cell carcinoma (HCC), ultrasound (US).