Table 3 Comparison of Clinicopathological and Imaging characteristics in non-PND patients with benign or malignant lesions.
Variable | Benign (n=70) | Malignant (n=27) | X2 | P-value |
|---|---|---|---|---|
Age (year) | ||||
 ≤50 | 45 | 2 | 25.238 | <0.001 |
 >50 | 25 | 25 | ||
Lesion size | ||||
 ≤1 cm | 46 | 7 | 12.446 | <0.001 |
 >1 cm | 24 | 20 | ||
Touchable mass | ||||
 Yes | 20 | 23 | 25.306 | <0.001 |
 No | 50 | 4 | ||
Distance of lesion from nipple | ||||
 ≤2 cm | 52 | 10 | 11.722 | <0.001 |
 2 cm | 18 | 17 | ||
Vascularity on US | ||||
 Yes | 32 | 17 | 2.319 | 0.128 |
 No | 38 | 10 | ||
Irregular shape on US | ||||
 Yes | 33 | 14 | 0.173 | 0.677 |
 No | 37 | 13 | ||
Ductal change on US | ||||
 Yes | 24 | 7 | 0.626 | 0.429 |
 No | 46 | 20 | ||
Abnormal mammogram | ||||
 Yes | 22 | 21 | 16.961 | <0.001 |
 No | 48 | 6 | ||
BIRADS | ||||
 3–4 A | 48 | 5 | 19.695 | <0.001 |
 4B-5 | 22 | 22 | ||
