Table 1 The characteristics of the cases
Group | A | B | C | D | Total | χ2 test | |
|---|---|---|---|---|---|---|---|
Cases | 13 | 8 | 26 | 15 | 62 | p-Value | |
Age (y) | (mean) | 51.1 | 61.9 | 56.8 | 58.6 | 56.7 | 0.4072* |
≤39 | 3 | 2 | 3 | 2 | 10 | 0.4600 | |
40–49 | 4 | 0 | 7 | 3 | 14 | ||
50–59 | 1 | 1 | 7 | 2 | 11 | ||
60–69 | 4 | 1 | 5 | 4 | 14 | ||
≥70 | 1 | 4 | 4 | 4 | 13 | ||
Body mass index (kg/m2) | (mean) | 22.2 | 25.0 | 22.3 | 23.5 | 22.9 | 0.6837* |
< 25 | 10 | 5 | 21 | 11 | 47 | 0.7711 | |
≥25 | 3 | 3 | 5 | 4 | 15 | ||
Tumor location | Lateral/Central | 9 | 8 | 19 | 9 | 45 | 0.2316 |
Medial | 4 | 0 | 7 | 6 | 17 | ||
T Classification | Tis | 3 | 1 | 4 | 4 | 12 | 0.8833 |
T1 | 9 | 6 | 19 | 8 | 42 | ||
T2 | 1 | 1 | 2 | 3 | 7 | ||
T4 | 0 | 0 | 1 | 0 | 1 | ||
Assessment preoperative axillary lymph node | US/MRI/CT | 12 | 8 | 26 | 15 | 61 | 0.2803 |
Confirmed by FNA | 1 | 0 | 0 | 0 | 1 | ||
Surgery | Partial mastectomy | 9 | 6 | 16 | 8 | 39 | 0.7210 |
Mastectomy | 4 | 2 | 10 | 7 | 23 | ||
Histology | DCIS | 3 | 0 | 5 | 5 | 13 | 0.3752 |
IDC | 9 | 5 | 16 | 6 | 36 | ||
Others | 1 | 3 | 5 | 4 | 13 |