Table 1.
Patient and tumor characteristics by race
| Total N=746 |
White N=615 (82%) |
Black N=131 (18%) |
P value | |
|---|---|---|---|---|
| Age, mean (SD) years | 57.9 (12.2) | 58.0 (12.1) | 57.9 (12.8) | 0.94 |
| BC Stage | 0.03 | |||
| I | 466 (63%) | 397 (65%) | 131 (53%) | |
| II | 251 (34%) | 197 (32%) | 54 (41%) | |
| III | 29 (4%) | 21 (3%) | 8 (6%) | |
| Tumor Size, mean (SD) cm | 1.6 (1.2) | 1.5 (1.1) | 1.8 (1.4) | 0.10 |
| Tumor grade | 0.0003 | |||
| I (Well differentiated) | 168 (23%) | 150 (24%) | 18 (14%) | |
| II (Moderately differentiated) | 370 (50%) | 311 (51%) | 59 (45%) | |
| III (Poorly differentiated) | 208 (28%) | 154 (25%) | 54 (41%) | |
| ER/PR+† | 590 (83%) | 500 (85%) | 90 (73%) | 0.002 |
| Triple negative† | 53 (8%) | 35 (6%) | 18 (15%) | 0.0007 |
| NPI | 0.0013 | |||
| ≤4.4 | 609 (82%) | 515 (84%) | 94 (72%) | |
| >4.4 | 137 (18%) | 100 (16%) | 37 (28%) | |
| BMI† | <.0001 | |||
| BMI 18-24 | 384 (52%) | 357 (59%) | 27 (21%) | |
| BMI 25-29 | 167 (23%) | 119 (20%) | 48 (37%) | |
| BMI >=30 | 182 (25%) | 126 (21%) | 56 (43%) | |
| Alcohol consumption (drinks/week)† | <.0001 | |||
| 0 | 220 (29%) | 151 (25%) | 69 (53%) | |
| 1-4 | 416 (56%) | 359 (58%) | 57 (44%) | |
| ≥ 5 | 110 (15%) | 105 (17%) | 5 (4%) | |
| Physical Activity† | 0.08 | |||
| Sedentary | 348 (48%) | 274 (46%) | 74 (56%) | |
| Moderate Active | 198 (27%) | 167 (28%) | 31 (24%) | |
| Highly Active | 182 (25%) | 156 (26%) | 26 (20%) | |
| Diet† | <.0001 | |||
| Very good/Excellent | 395 (53%) | 356 (58%) | 39 (30%) | |
| Good/Fair/Poor | 346 (47%) | 256 (42%) | 90 (70%) | |
| Smoking† | 0.0005 | |||
| non-smoker | 402 (55%) | 313 (52%) | 89 (71%) | |
| former smoker | 296 (41%) | 264 (44%) | 32 (25%) | |
| current smoker | 30 (4%) | 25 (4%) | 5 (4%) | |
| Mammogram ≤ 2 years† | 579 (79%) | 472 (78%) | 107 (82%) | 0.29 |
†
Numbers may not add up to total due to missing data.