TABLE 1.
Patient characteristics
| Characteristics | Radiocolloid N = 1,353 (%) |
Combination N = 2,049 (%) |
p Value |
|---|---|---|---|
| Age (years) | 0.0002 | ||
| Mean | 55.3 | 56.8 | |
| Median (range) | 54 (22–99) | 56 (23–91) | |
| BMI (kg/m2) | <0.0001* | ||
| Mean | 26.8 | 28.2 | |
| Median (range) | 26 (16–52) | 27 (14–64) | |
| Race | <0.0001 | ||
| White | 1,056 (78.1) | 1,525 (71.8) | |
| African-American | 228 (16.9) | 480 (22.6) | |
| Others | 68 (5.0) | 119 (5.6) | |
| Surgery type | <0.0001 | ||
| Breast-conserving surgery | 657 (48.6) | 1,158 (56.5) | |
| Total mastectomy | 378 (27.9) | 792 (38.7) | |
| Skin-sparing mastectomy | 318 (23.5) | 99 (4.8) | |
| T stage | <0.0001 | ||
| Tis | 269 (19.9) | 269 (13.1) | |
| T1 | 794 (58.7) | 1,219 (59.5) | |
| T2 | 261 (19.3) | 490 (23.9) | |
| T3 | 25 (1.8) | 51 (2.5) | |
| T4 | 4 (0.3) | 20 (1.0) | |
| Histology | 0.41 | ||
| IDC/DCIS | 1,137 (84.0) | 1,683 (82.1) | |
| ILC | 90 (6.7) | 147 (7.2) | |
| Mixed ductal and lobular | 88 (6.5) | 143 (7.0) | |
| Other | 38 (2.8) | 76 (3.7) | |
| Neoadjuvant treatment (chemo/hormonal) | 0.22 | ||
| No | 1,179 (87.1) | 1,755 (85.7) | |
| Yes | 174 (12.9) | 294 (14.3) |
IDC invasive ductal carcinoma, DCIS ductal carcinoma in situ, ILC invasive lobular carcinoma
*
Rank-sum test