TABLE 1.
Demographic, Clinical, and Surgical Characteristics
| All Cases (n = 24,506) | |||
|---|---|---|---|
| Characteristics | Mean | SD | Range |
| Demographics | |||
| Age | 51.5 | 10.4 | 18–90 |
| BMI | 27.0 | 5.5 | 18–45 |
| Total length of hospital stay, d | 2.0 | 1.7 | 0–29 |
| n | % | ||
| Clinical Characteristics | |||
| Reason for mastectomy | |||
| Cancer | 21,289 | 86.9 | |
| Prophylactic | 3217 | 13.1 | |
| Diabetes | |||
| Yes | 1168 | 4.8 | |
| No | 23,338 | 95.2 | |
| Hypertension | |||
| Yes | 5944 | 24.3 | |
| No | 18,562 | 75.7 | |
| Smoking | |||
| Yes | 3091 | 12.6 | |
| No | 21,415 | 87.4 | |
| Chemotherapy in last 30 d* | |||
| Yes | 924 | 3.8 | |
| No | 16,577 | 67.6 | |
| Null | 7005 | 28.6 | |
| ASA class | |||
| I and II | 19,576 | 79.9 | |
| III and IV | 4906 | 20.0 | |
| Unknown | 24 | 0.1 | |
| Surgical characteristics | |||
| Timing of reconstruction | |||
| Immediate | 21,019 | 85.8 | |
| Delayed | 3487 | 14.2 | |
| Reconstructive modality | |||
| Implant | 20,595 | 84.0 | |
| Autologous | 3911 | 16.0 | |
| Operating year | |||
| 2005 | 276 | 1.1 | |
| 2006 | 961 | 3.9 | |
| 2007 | 1973 | 8.1 | |
| 2008 | 2677 | 10.9 | |
| 2009 | 3512 | 14.3 | |
| 2010 | 3942 | 16.1 | |
| 2011 | 4801 | 19.6 | |
| 2012 | 6364 | 26.0 | |
* Data regarding chemotherapy and radiation therapy in the designated preoperative period was not available in 7005 (28.5%) and 7024 (28.6%) of cases, respectively.