Research Article
The Impact of Locoregional Therapy in Nonmetastatic Inflammatory Breast Cancer: A Population-Based Study
Table 1
Study population characteristics.
| | Variable | Total | Partial mastectomy | Total mastectomy | value |
| | Number of patients | 7304 | 409 | 6895 | | | Age (yrs) | | | | | | Mean | 56 | 60.1 | 57.1 | <0.001 | | Range | 21–103 | 25–97 | 21–103 | | | Race (%) | | | | <0.001 | | White | 5871 (80.4) | 309 (75.6) | 5562 (80.7) | | | Black | 1003 (13.7) | 81 (19.8) | 992 (13.4) | | | Other | 430 (5.9) | 19 (4.6) | 411 (5.9) | | | N stage | | | | <0.001 | | N0 | 1147 (15.7) | 147 (35.9) | 1000 (14.5) | | | N1 | 2478 (33.9) | 143 (35.0) | 2335 (33.9) | | | N2 | 1788 (24.5) | 66 (16.1) | 1722 (25.0) | | | N3 | 1891 (25.9) | 53 (13.0) | 1838 (26.6) | | | ER status | | | | 0.02 | | Positive | 3458 (47.3) | 189 (46.2) | 3269 (47.4) | | | Negative | 3147 (43.1) | 165 (40.3) | 2982 (43.3) | | | Unknown | 699 (9.6) | 55 (13.5) | 644 (9.3) | | | PR | | | | 0.14 | | Positive | 2671 (36.6) | 151 (36.9) | 2520 (36.6) | | | Negative | 3870 (53.0) | 204 (49.9) | 3666 (53.2) | | | Unknown | 709 (10.4) | 54 (13.2) | 763 (10.34) | | | Subtype | | | | 0.36 | | HR + | 579 (38.4) | 29 (42.0) | 550 (38.2) | | | HER2 + | 535 (35.5) | 19 (27.5) | 535 (35.8) | | | Triple negative | 374 (26.1) | 21 (30.5) | 395 (25.0) | |
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