- Baseline characteristics of the studied sample (N=247).
Variables | n (%) |
---|---|
Age (years), mean±SD | 44.47±14.35 |
Age (years), median (IQR) | 44.5 (35.0-54.0) |
Ultrasound | |
Yes | 246 (99.6) |
No | 1 (0.4) |
Mammography | |
Yes | 197 (79.8) |
No | 50 (20.2) |
Affected side | |
Left | 127 (51.4) |
Right | 120 (48.6) |
Lesion size (cm), mean±SD | 2.25±1.80 |
Lesion size (cm), median (IQR) | 1.5 (1.0-2.8) |
Pathology | |
Benign | 199 (80.6) |
Malignant | 41 (16.6) |
Hyperplasia | 7 (2.8) |
Imaging findings | |
Mass | 164 (66.4) |
Mass with calcification | 14 (5.7) |
Calcification only | 5 (2.0) |
Asymmetry | 39 (15.8) |
Architectural distortion | 26 (10.5) |
Intraductal mass | 37 (15.0) |
Complex mass | 18 (7.3) |
Skin thickening | 6 (2.4) |
Nipple retraction | 2 (0.8) |
Mammography breast density (n=197) | |
A | 28 (14.4) |
B | 84 (43.0) |
C | 75 (38.5) |
D | 8 (4.1) |
Lesion location | |
Retroareolar | 57 (23.1) |
Upper outer quadrant | 133 (53.8) |
Lower outer quadrant | 22 (8.9) |
Upper inner quadrant | 20 (8.1) |
Lower inner quadrant | 15 (6.1) |
Values are presented as numbers and percentages (%), or mean ± standard deviation (SD), or median interquartile range (IQR).