Table 2.
NSQIP database surgical interventions
| Groups → | Total no. | Breast conservation therapy (BCT) |
Mastectomy (MAST) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| (1) PM (%) | (2) OS (%) | (3) M (%) | (4) M+R (%) | ||||||
| Year of study | |||||||||
| 2005 | 1776 | (46.34) | (1.86) | (35.87) | (15.93) | ||||
| DCIS | 269 | 127 | (47.21) | 2 | (0.74) | 77 | (28.62) | 63 | (23.42) |
| INV | 1507 | 696 | (46.18) | 31 | (2.06) | 560 | (37.16) | 220 | (14.60) |
| 2006 | 6090 | (47.18) | (1.82) | (34.83) | (16.17) | ||||
| DCIS | 1072 | 545 | (50.84) | 11 | (1.03) | 290 | (27.05) | 226 | (21.08) |
| INV | 5018 | 2328 | (46.39) | 100 | (1.99) | 1831 | (36.49) | 759 | (15.13) |
| 2007 | 10,677 | (43.13) | (1.57) | (37.69) | (17.61) | ||||
| DCIS | 1876 | 925 | (49.31) | 41 | (2.19) | 498 | (26.55) | 412 | (21.96) |
| INV | 8801 | 3680 | (41.81) | 127 | (1.44) | 3526 | (40.06) | 1468 | (16.68) |
| 2008 | 12,505 | (37.34) | (1.36) | (40.15) | (21.15) | ||||
| DCIS | 2099 | 967 | (46.07) | 24 | (1.14) | 566 | (26.97) | 542 | (25.82) |
| INV | 10,406 | 3702 | (35.58) | 146 | (1.40) | 4455 | (42.81) | 2103 | (20.21) |
| 2009 | 15,419 | (38.15) | (1.50) | (38.23) | (22.12) | ||||
| DCIS | 2655 | 1194 | (44.97) | 47 | (1.77) | 741 | (27.91) | 673 | (25.35) |
| INV | 12,764 | 4688 | (36.73) | 185 | (1.45) | 5154 | (40.38) | 2737 | (21.44) |
| 2010 | 15,417 | (38.63) | (2.19) | (35.95) | (23.23) | ||||
| DCIS | 2745 | 1251 | (45.57) | 82 | (2.99) | 707 | (25.76) | 705 | (25.68) |
| INV | 12,672 | 4705 | (37.13) | 255 | (2.01) | 4836 | (38.16) | 2876 | (22.70) |
| 2011 | 15,823 | (39.15) | (2.81) | (32.64) | (25.40) | ||||
| DCIS | 2976 | 1298 | (43.62) | 90 | (3.02) | 749 | (25.17) | 839 | (28.19) |
| INV | 12,847 | 4897 | (38.12) | 354 | (2.76) | 4416 | (34.37) | 3180 | (24.75) |
| 2012 | 18,795 | (38.66) | (2.85) | (32.53) | (25.96) | ||||
| DCIS | 3635 | 1605 | (44.15) | 127 | (3.49) | 945 | (26.00) | 958 | (26.35) |
| INV | 15,160 | 5661 | (37.34) | 408 | (2.69) | 5169 | (34.10) | 3922 | (25.87) |
| 2013 | 22,178 | (39.93) | (2.93) | (30.12) | (27.02) | ||||
| DCIS | 4318 | 2032 | (47.06) | 108 | (2.50) | 927 | (21.47) | 1251 | (28.97) |
| INV | 17,860 | 6824 | (38.21) | 541 | (3.03) | 5754 | (32.22) | 4741 | (26.55) |
| 2014 | 23,533 | (42.09) | (3.65) | (29.49) | (24.77) | ||||
| DCIS | 4547 | 2198 | (48.34) | 153 | (3.36) | 1005 | (22.10) | 1191 | (26.19) |
| INV | 18,986 | 7707 | (40.59) | 706 | (3.72) | 5934 | (31.25) | 4639 | (24.43) |
| 2015 | 25,987 | (43.97) | (3.72) | (27.79) | (24.52) | ||||
| DCIS | 4887 | 2567 | (52.53) | 169 | (3.46) | 954 | (19.52) | 1197 | (24.49) |
| INV | 21,100 | 8860 | (41.99) | 797 | (3.78) | 6267 | (29.70) | 5176 | (24.53) |
| 2016 | 29,187 | (46.11) | (4.42) | (26.43) | (23.04) | ||||
| DCIS | 5562 | 2952 | (53.07) | 245 | (4.40) | 1023 | (18.39) | 1342 | (24.13) |
| INV | 23,625 | 10,506 | (44.47) | 1045 | (4.42) | 6692 | (28.33) | 5382 | (22.78) |
| Overall p-value (R2) | 0.54 | (0.007) | 0.002 | (0.83) | 0.002 | (0.73) | 0.007 | (0.67) | |
| DCIS p-value (R2) | 0.63 | (0.09) | 0.002 | (0.80) | < 0.001 | (0.83) | 0.01 | (0.64) | |
| INV p-value (R2) | 0.54 | (0.03) | 0.00 | (0.77) | 0.003 | (0.68) | 0.003 | (0.70) | |
Each year equals 100% of breast cancer interventions done within that year
PM partial mastectomy, OS oncoplastic surgery, M mastectomy (simple + radical), M+I mastectomy and implant placement, M+F mastectomy, and flap reconstruction