Table 1.
Clinical characteristics of patients with breast nodules in training and testing sets (n=358).
| Clinical feature | Training set |
Testing set |
||||||
|---|---|---|---|---|---|---|---|---|
| ALL | Benign | Malignant | P value | ALL | Benign | Malignant | P value | |
| Year | 44.33±11.57 | 39.35±9.86 | 50.29±10.64 | <0.001 | 44.29±11.62 | 39.77±10.83 | 49.64±10.28 | <0.001 |
| Height | 159.49±5.55 | 159.72±6.25 | 159.22±4.58 | 0.63 | 159.85±5.16 | 160.19±5.54 | 159.45±4.72 | 0.39 |
| Weight | 58.15±7.76 | 56.48±6.73 | 60.16±8.45 | <0.001 | 57.18±7.94 | 57.60±6.94 | 56.68±9.07 | 0.48 |
| Max | 19.69±12.14 | 16.65±9.09 | 23.34±14.21 | <0.001 | 20.52±14.05 | 14.95±6.71 | 27.09±17.39 | <0.001 |
| Min | 10.89±5.55 | 9.26±5.22 | 12.85±5.32 | <0.001 | 10.97±6.02 | 8.35±4.83 | 14.08±5.86 | <0.001 |
| Menstruation | <0.001 | 0.01 | ||||||
| No | 198(69.23) | 133(85.26) | 65(50.00) | 49(68.06) | 32(82.05) | 17(51.52) | ||
| Yes | 88(30.77) | 23(14.74) | 65(50.00) | 23(31.94) | 7(17.95) | 16(48.48) | ||
| Location | 0.97 | 1.00 | ||||||
| Right | 151(52.80) | 83(53.21) | 68(52.31) | 36(50.00) | 19(48.72) | 17(51.52) | ||
| Left | 135(47.20) | 73(46.79) | 62(47.69) | 36(50.00) | 20(51.28) | 16(48.48) | ||
Note: Max = Maximum diameter; Min = Minimum diameter.