Table 3.
Treatment: Breast conserving surgery (BCS) versus mastectomy and receipt of adjuvant radiation after BCS/mastectomy by race and stage at diagnosis
| Surgery type by stage | IP | NHW |
||
|---|---|---|---|---|
| n (%) | n (%) | P value* | ||
| Stage I | BCS | 441 (63.3) | 139,207 (63.5) | 0.445 |
| Mastectomy | 251 (36.0) | 77,953 (35.6) | ||
| Stage II | BCS | 352 (41.3) | 66,942 (41.9) | 0.158 |
| Mastectomy | 489 (57.4) | 90,543 (56.6) | ||
| Stage III | BCS | 34 (16.0) | 5,262 (16.7) | 0.510 |
| Mastectomy | 169 (79.3) | 23,857 (75.5) | ||
| Surgery type by stage |
IP | NHW |
||
|---|---|---|---|---|
| Radiation received | n (%) | n (%) | P value* | |
| BCS | Yes | 146 (50.9) | 29,209 (47.5) | 0.690 |
| In situ | No/UK | 141 (49.1) | 32,283 (52.5) | |
| BCS | Yes | 577 (72.8) | 147,695 (71.6) | 0.211 |
| Stage I & II | No/UK | 216 (27.2) | 58,454 (28.4) | |
| Mastectomy | Yes | 154 (20.8) | 18,588 (11.0) | <0.001 |
| Stage I & II | No/UK | 586 (79.2) | 149,908 (89.0) | |
| Mastectomy | Yes | 98 (58.0) | 11,507 (48.2) | 0.266 |
| Stage III | No/UK | 71 (42.0) | 12,350 (51.8) | |
Cancers diagnosed 1988–2006
*
Adjusted for race, age, stage at diagnosis and ER and PR status using multivariate logistic regression analysis
IP Asian Indian/Pakistani, NHW non-Hispanic white, BCS breast conserving surgery, No/UK did not receive or unknown whether received radiation