Table 1.
Characteristics of patients.
| C-NSM | R-NSM | Chi2 | ||||
|---|---|---|---|---|---|---|
| Nb | % | Nb | % | p | ||
| Number | 142 | 62.0 | 87 | 38.0 | ||
| BMI | <= 24.9 | 119 | 83.8 | 73 | 83.9 | 0.825 |
| 25-29.9 | 17 | 12.0 | 9 | 10.3 | ||
| >= 30 | 6 | 4.2 | 5 | 5.7 | ||
| Cup size | A-B | 92 | 64.8 | 49 | 56.3 | 0.393 |
| C | 34 | 23.9 | 24 | 27.6 | ||
| > C | 16 | 11.3 | 14 | 16.1 | ||
| Tobacco | No | 118 | 83.1 | 61 | 70.1 | 0.017 |
| Yes | 24 | 16.9 | 26 | 29.9 | ||
| Indication | Primitive | 75 | 52.8 | 70 | 80.5 | <0.0001 |
| Local recurrence | 7 | 4.9 | 10 | 11.5 | ||
| Prophylactic | 60 | 42.3 | 7 | 8.0 | ||
| IBR-Type | Implant | 128 | 90.1 | 50 | 57.5 | <0.0001 |
| Expander | 7 | 4.9 | 0 | 0 | ||
| LDF | 6 | 4.2 | 25 | 28.7 | ||
| LDF + implant | 1 | 0.7 | 12 | 13.7 | ||
| Breast weight | <= 300 | 92 | 64.8 | 31 | 35.6 | <0.0001 |
| > 300 | 50 | 35.2 | 56 | 64.4 | ||
| Complication breast | No | 103 | 72.5 | 68 | 78.2 | 0.214 |
| Yes | 39 | 27.5 | 19 | 21.8 | ||
| Complication dorsal | Yes | 4 | 57.1 | 7 | 18.9 | 0.263 |
| No | 3 | 42.9 | 30 | 81.1 | ||
| Previous radiotherapy | No | 129 | 90.8 | 67 | 77.0 | 0.004 |
| Yes | 13 | 9.2 | 20 | 23.0 | ||
| Radiotherapy | No | 123 | 86.6 | 41 | 47.1 | <0.0001 |
| PMRT | 12 | 8.5 | 27 | 31.0 | ||
| Previous RTH | 6 | 4.2 | 10 | 11.5 | ||
| NAC+NAR | 1 | 0.7 | 9 | 10.3 | ||
| NAC | No | 130 | 91.5 | 62 | 71.3 | <0.0001 |
| Yes | 12 | 8.5 | 25 | 28.7 | ||
C-NSM, conventional nipple sparing mastectomy; R-NSM, robotic NSM; BMI, body mass index, DCIS, ductal carcinoma in situ; IBR, immediate breast reconstruction; LDF, latissimus dorsi-flap; POLH, post-operative length of hospitalization; PMRT, post-mastectomy radiotherapy; RTH, radiotherapy; NAC, neo-adjuvant chemotherapy; NAR, neo-adjuvant radiotherapy; SLNB, sentinel lymph node biopsy; ALND, axillary lymph node dissection.