From: Triple-negative breast cancers are increased in black women regardless of age or body mass index
Category (p-value)* | White | Black | Hispanic | Other | All |
---|---|---|---|---|---|
 | N (%) | ||||
Race | 148 (36) | 177 (43) | 43 (10) | 47 (11) | 415 |
Age (years) (0.04) | Â | Â | Â | Â | Â |
   ≤ 50 (premenopausal) | 37 (25) | 53 (30) | 20 (47) | 15 (32) | 125 (30) |
   >50 (postmenopausal) | 111 (75) | 124 (70) | 23 (53) | 32 (68) | 290 (70) |
ER positive (0.0003) | 115 (80) | 104 (59) | 35 (81) | 35 (74) | 289 (70) |
PR positive (<0.0001) | 105 (72) | 90 (51) | 36 (84) | 22 (47) | 253 (62) |
Her2 positive (0.03) | 11 (7.5) | 26 (15) | 5 (12) | 11 (23) | 53 (13) |
Triple negative (0.0002) | 19 (13) | 52 (30) | 5 (12) | 5 (11) | 81 (20) |
Grade (0.01) | Â | Â | Â | Â | Â |
   1 | 27 (19) | 14 (8.5) | 7 (16) | 6 (13) | 54 (14) |
   2 | 70 (49) | 72 (44) | 20 (46) | 14 (31) | 176 (45) |
   3 | 45 (32) | 78 (48) | 16 (37) | 25 (56) | 164 (42) |
T (tumour size) (0.64) | Â | Â | Â | Â | Â |
   1 | 76 (58) | 94 (58) | 22 (54) | 22 (52) | 214 (57) |
   2 | 44 (33) | 56 (35) | 12 (29) | 15 (36) | 127 (34) |
   3 | 9 (6.8) | 12 (7.4) | 6 (15) | 4 (9.5) | 31 (8) |
   4 | 3 (2.3) | 0 (0) | 1 (2.4) | 1 (2.4) | 5 (1) |
No. of positive nodes (0.50) | Â | Â | Â | Â | Â |
   0 | 64 (59) | 66 (47) | 18 (56) | 22 (56) | 170 (53) |
   1 to 3 | 27 (25) | 43 (31) | 11 (34) | 8 (21) | 89 (28) |
   4 to 9 | 11 (10) | 20 (14) | 2 (6) | 8 (21) | 41 (13) |
   ≥ 10 | 6 (6) | 11 (8) | 1 (3) | 1 (3) | 19 (6) |
BMI (kg/m 2 ) (0.01) | Â | Â | Â | Â | Â |
   Underweight/normal | 39 (27) | 32 (18) | 5 (12) | 19 (40) | 95 (23) |
   Overweight | 45 (31) | 47 (27) | 19 (44) | 11 (23) | 122 (30) |
   Obesity I | 32 (22) | 55 (31) | 11 (26) | 13 (27) | 111 (27) |
   Obesity II | 20 (14) | 26 (15) | 3 (7) | 2 (4.3) | 51 (13) |
   Obesity III | 7 (4.9) | 15 (8.6) | 5 (12) | 2 (4.3) | 29 (7) |