Table 1. Patient characteristics.
| Demographic information | Control (N=142) | Trial (N=164) | P |
|---|---|---|---|
| Breast operation type, n (%) | 0.730 | ||
| Breast-conserving surgery (N=155) | 69 (48.6) | 86 (52.4) | |
| Mastectomy (N=78) | 39 (27.5) | 39 (23.8) | |
| Nipple-sparing mastectomy or skin-sparing mastectomy with reconstruction (N=73) | 34 (23.9) | 39 (23.8) | |
| Axillary operation type, n (%) | 0.291 | ||
| Axillary lymph node dissection (N=60) | 32 (22.5) | 28 (17.1) | |
| Axillary sentinel lymph node biopsy (N=246) | 110 (77.5) | 136 (82.9) | |
| Stage, n (%) | 0.397 | ||
| 0 | 11 (7.7) | 9 (5.5) | |
| 1 | 61 (43.0) | 73 (44.5) | |
| 2 | 45 (31.7) | 62 (37.8) | |
| 3 | 25 (17.6) | 20 (12.2) | |
| Comorbidity, n (%) | 0.449 | ||
| No | 92 (64.8) | 114 (69.5) | |
| Yes | 50 (35.2) | 50 (30.5) | |
| Weight of specimen (g), mean (range) | 59.6 (6.5–2,498.0) | 59.0 (6.3–961.1) | 0.542 |
| BMI (kg/m2), mean (range) | 23.8 (17.7–38.3) | 23.6 (17.8–34.4) | 0.643 |
BMI, body mass index.