Table 3:
Volume and Rate of CPM with Immediate Breast Reconstruction in AllT4a Cohort
| Diagnosis Year | CPMa, N | CPM with IBR, n (%) |
|---|---|---|
| 2004 | 163 | 22 (13.5) |
| 2005 | 184 | 29 (15.8) |
| 2006 | 234 | 46 (19.7) |
| 2007 | 309 | 52 (16.8) |
| 2008 | 352 | 64 (18.2) |
| 2009 | 440 | 90 (20.5) |
| 2010 | 452 | 101 (22.3) |
| 2011 | 529 | 115 (21.7) |
| 2012 | 551 | 128 (23.2) |
| 2013 | 558 | 156 (28.0) |
| 2014 | 530 | 145 (27.4) |
| Total, (n) | 4,302 | 948 (22) |
| IRRb | 1.09 | 1.16 |
a
AllT4 = Tabc+T4+NOS (not otherwise specified)
b
P <0.001 for all
CPM, contralateral prophylactic mastectomy; IBR immediate breast reconstruction
IRR, incidence rate ratio