Table 1.
Patient Demographic Factors of Patients Undergoing Prophylactic Nipple-sparing Mastectomy
| Variable | Percentage (%) |
|---|---|
| Mean age at time of surgery ± SD, y | 46.9 ± 9.0 |
| Mean current age ± SD, y | 57.0 ± 9.0 |
| Mean body mass index ± SD, kg/m2 | 23.9 ± 4.9 |
| Smoking | |
| Current | 6 (2.6) |
| Former | 13 (5.7) |
| Diabetes mellitus | 7 (3.1) |
| Prior radiation therapy | 6 (2.6) |
| Prior chemotherapy | 13 (5.7) |
| Mastectomy laterality | |
| Unilateral | 20 (8.8) |
| Bilateral | 208 (91.2) |
| Prior breast augmentation | |
| Yes | 6 (2.6) |
| No | 222 (97.4) |
| Prior breast reduction/mastopexy | |
| Yes | 8 (3.5) |
| No | 220 (96.5) |
| Genetic predisposition | |
| BRCA1 | 48 (21.1) |
| BRCA2 | 28 (12.3) |
| CDKN2A | 1 (0.4) |
| None | 151 (66.2) |
SD, standard deviation.