|  |  | Non-Hispanic white | Black |  | Hispanic white |  | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
Characteristics | Categories | N | LE (%) | HR (95% CI)a | N | LE (%) | HR (95% CI)a | N | LE (%) | HR (95% CI)a | Pfor interactionb |
Age at diagnosis (years) | 35-44 | 56 | 19 (33.9) | 1.00 | 53 | 21 (39.6) | 1.00 | 14 | 3 (21.4) | 1.00 | Â |
45-49 | 65 | 16 (24.6) | 0.90 (0.45 - 1.77) | 46 | 20 (43.5) | 1.00 (0.53 - 1.92) | 17 | 7 (41.2) | 2.23 (0.50 - 10.07) | Â | |
50-54 | 112 | 28 (25.0) | 0.77 (0.42 - 1.40) | 48 | 17 (35.4) | 0.87 (0.44 - 1.72) | 15 | 1 (6.7) | 0.40 (0.04 - 4.30) | Â | |
55-59 | 77 | 17 (22.1) | 0.74 (0.38 - 1.44) | 37 | 13 (35.1) | 0.69 (0.33 - 1.44) | 14 | 5 (35.7) | 2.77 (0.56 - 13.77) | Â | |
60-64 | 61 | 8 (13.1) | 0.42 (0.17 - 1.00) | 42 | 11 (26.2) | 0.60 (0.26 - 1.34) | 9 | 4 (44.4) | 9.17 (1.43 - 58.94) | 0.24 | |
Surgery type | Partial/less than total mastectomy/ surgery, NOS | 272 | 53 (19.5) | 1.00 | 123 | 43 (35.0) | 1.00 | 47 | 12 (25.5) | 1.00 | Â |
Total/modified radical mastectomy | 99 | 35 (35.4) | 1.58 (1.02 - 2.45) | 103 | 39 (37.9) | 1.15 (0.72 - 1.81) | 22 | 8 (36.4) | 2.16 (0.71 - 6.54) | 0.39 | |
Number of excised lymph nodes | 0 | 88 | 3 (3.4) | 0.10 (0.03 - 0.32) | 41 | 5 (12.2) | 0.41 (0.16 - 1.10) | 14 | 1 (7.1) | 0.09 (0.01 - 0.80) | Â |
1-9c | 100 | 18 (18.0) | 0.48 (0.28 - 0.82) | 49 | 13 (26.5) | 0.64 (0.35 - 1.18) | 13 | 1 (7.7) | 0.09 (0.01 - 0.70) | Â | |
10+ | 183 | 67 (36.6) | 1.00 | 136 | 64 (47.1) | 1.00 | 42 | 18 (42.9) | 1.00 | 0.48 | |
Chemotherapy | No | 250 | 43 (17.2) | 1.00 | 124 | 27 (21.8) | 1.00 | 39 | 13 (33.3) | 1.00 | Â |
Yes | 121 | 45 (37.2) | 1.25 (0.80 - 1.95) | 102 | 55 (53.9) | 2.69 (1.61 - 4.50) | 30 | 7 (23.3) | 0.69 (0.24 - 2.03) | 0.01 | |
Body mass index (kg/m2) | <25 | 192 | 42 (21.9) | 1.00 | 89 | 23 (25.8) | 1.00 | 25 | 5 (20.0) | 1.00 | Â |
25-29.9 | 114 | 26 (22.8) | 1.05 (0.64 - 1.73) | 76 | 32 (42.1) | 1.58 (0.90 - 2.78) | 30 | 9 (30.0) | 2.25 (0.65 - 7.72) | Â | |
30+ | 65 | 20 (30.8) | 1.50 (0.86 - 2.61) | 61 | 27 (44.3) | 1.65 (0.91 - 2.98) | 14 | 6 (42.9) | 3.94 (0.99 - 15.75) | 0.46 | |
Hypertension | No | 292 | 73 (25.0) | 1.00 | 119 | 30 (25.2) | 1.00 | 57 | 19 (33.3) | 1.00 | Â |
Yes | 79 | 15 (19.0) | 0.95 (0.52 - 1.74) | 107 | 52 (48.6) | 2.73 (1.65 - 4.53) | 12 | 1 (8.3) | 0.21 (0.02 - 2.00) | <0.001 |