Table 1. Baseline characteristics of patients with NMLs.
| Characteristic | Malignant NML (n = 47) | Benign NML (n = 12) | P value |
|---|---|---|---|
| Age (y) | 51.11±10.27* | 42.42±10.59* | 0.12 |
| BMI (kg/m2) | 23.36±2.73* | 23.25±2.34* | 0.90 |
| Family history of breast cancer | 1.00 | ||
| Yes | 1 | 0 | |
| No | 46 | 12 | |
| Breast pain | 1.00 | ||
| Yes | 18 | 5 | |
| No | 29 | 7 | |
| Nipple discharge | 1.00 | ||
| Yes | 0 | 0 | |
| No | 47 | 12 | |
| Palpable mass | |||
| Yes | 0 | 0 | 1.00 |
| No | 47 | 12 | |
| Architectural changes | 1.00 | ||
| Skin thickening | 0 | 0 | |
| Architectural distortion | 0 | 0 | |
| No change | 47 | 12 | |
| Position of lesion | 1.00 | ||
| Left | 22 | 7 | |
| Right | 25 | 5 | |
| Quadrant | 0.53 | ||
| Upper exterior | 20 | 4 | |
| Upper interior | 7 | 3 | |
| Lower interior | 1 | 2 | |
| Lower exterior | 8 | 2 | |
| Enlarged lymph nodes in axillary regions | 1.00 | ||
| Yes | 2 | 0 | |
| No | 45 | 12 |
Note: Unless otherwise indicated, data are numbers of NMLs and numbers in parentheses are percentages.
*Data are mean values, with standard deviation. BMI: Body mass index.