Table 1 Clinical and imaging characteristics of the training & validation set, and the external test set
Characteristics | Total | Training & Validation | External Test | P |
|---|---|---|---|---|
Patients (n) | 712 | 539 | 173 | - |
Images (n) | 1718 | 1181 | 537 | - |
Age (y), M (Q₁, Q₃) | 42.0 (33.0, 50.0) | 41.0 (33.0, 51.0) | 42.0 (33.0, 50.0) | 0.59 |
Menstrual status (n, %) | 0.42 | |||
Postmenopausal | 157 (22.1) | 42 (24.3) | 115 (21.3) | |
Premenopausal | 555 (77.9) | 131 (75.7) | 424 (78.7) | |
Lesion diameter (mm), M (Q₁, Q₃) | 23.0 (16.0, 34.0) | 21.0 (15.0, 32.0) | 24.0 (17.0, 34.0) | 0.42 |