Table 1.
Patient and ultrasonography baseline characteristics.
| Characteristic | Total n percentile (%) N = 168 | Training group N = 109 (64.9%) | Testing group N = 59 (35.1%) | Significance (p) |
|---|---|---|---|---|
| Age (year) | 46.2 ± 12.1 | 46.9 ± 12.5 | 44.9 ± 11.3 | 0.320 |
| Height (cm) | 159.4 ± 5.7 | 159.2 ± 5.8 | 159.6 ± 5.5 | 0.657 |
| Weight (kg) | 59.2 ± 7.6 | 59.6 ± 7.8 | 58.4 ± 7.1 | 0.308 |
| Transverse diameter (mm) | 19.2 ± 15.1 | 20.7 ± 16.0 | 16.4 ± 13.2 | 0.075 |
| Longitudinal diameter (mm) | 11.7 ± 10.5 | 12.8 ± 11.2 | 9.4 ± 8.7 | 0.043* |
| Pathological results: n (%) | 0.648 | |||
| Benign | 112 (66.7%) | 74 (67.9%) | 38 (64.4%) | |
| Malignant | 56 (33.3%) | 35 (32.1%) | 21 (35.6%) | |
| Lactation history: n (%) | 0.001* | |||
| F | 47 (28.0%) | 11 (10.1%) | 36 (61.0%) | |
| T | 121 (71.0%) | 98 (89.9%) | 23 (39.0%) | |
| History of menopause: n (%) | 0.001* | |||
| F | 84 (50.0%) | 73 (67.0%) | 11 (18.6%) | |
| T | 84 (50.0%) | 36 (33.0%) | 48 (81.4%) | |
| Family medical history: n (%) | 0.017* | |||
| F | 158 (94.0%) | 106 (97.2%) | 52 (88.1%) | |
| T | 10 (6.0%) | 3 (2.8%) | 7 (11.9%) | |
| Margin: n (%) | 0.401 | |||
| Clear | 104 (61.9%) | 70 (64.2%) | 34 (57.6%) | |
| Unclear | 64 (38.1%) | 39 (35.8%) | 25 (42.4%) | |
| Lesion shape: n (%) | 0.823 | |||
| Regular | 76 (45.2%) | 50 (45.9%) | 26 (44.1%) | |
| Irregular | 92 (54.8%) | 59 (54.1%) | 33 (55.9%) | |
| Cystic fluid transmission: n (%) | 0.796 | |||
| Clear | 116 (69.0%) | 76 (69.7%) | 40 (67.7%) | |
| Poor | 52 (31.0%) | 33 (30.3%) | 19 (32.3%) | |
| BF: n (%) | 0.107 | |||
| Absence | 113 (67.3%) | 78 (71.6%) | 35 (59.3%) | |
| Abundant | 55(32.7%) | 31 (28.4%) | 24 (40.7%) | |
BF blood flow distribution.
*Indicates statistically significant difference.