Table 2 Number (%) of patients receiving treatment by stage at diagnosis, 1980-2006.
From: Breast cancer treatment and ethnicity in British Columbia, Canada
| Â | Â | Ethnic Group | Â | Â | ||
|---|---|---|---|---|---|---|
Stage* | Treatment | Chinese | South Asian | Iranian | P-value | General Population |
I | Â | n = 808 | n = 271 | n = 52 | Â | n = 15,813 |
| Â | Radiation | 481 (59.5) | 191 (70.5) | 39 (75.0) | 0.001 | 10,476 (66.2) |
| Â | Surgery | 787 (97.4) | 265 (97.8) | 50 (96.2) | 0.787 | 14,981 (94.7) |
|  |    Surgery with radiation | 477 (59.0) | 189 (69.7) | 37 (71.2) | 0.003 | 10,266 (64.9) |
|  |    Surgery without radiation | 310 (38.4) | 76 (28.0) | 13 (25.0) | 0.002 | 4,715 (29.8) |
| Â | Chemotherapy | 158 (19.6) | 57 (21.0) | 9 (17.3) | 0.781 | 2,027 (12.8) |
| Â | Hormone therapy | 405 (50.1) | 115 (42.4) | 23 (44.2) | 0.077 | 6,549 (41.4) |
II | Â | n = 695 | n = 395 | n = 53 | Â | n = 16,137 |
| Â | Radiation | 468 (67.3) | 294 (74.4) | 45 (84.9) | 0.003 | 11,163 (69.2) |
| Â | Surgery | 667 (96.0) | 380 (96.2) | 53 (100.0) | 0.331 | 14,784 (91.6) |
|  |    Surgery with radiation | 458 (65.9) | 291 (73.7) | 45 (84.9) | 0.001 | 10,720 (66.4) |
|  |    Surgery without radiation | 209 (30.1) | 89 (22.5) | 8 (15.1) | 0.004 | 4,064 (25.2) |
| Â | Chemotherapy | 455 (65.5) | 260 (65.8) | 41 (77.4) | 0.208 | 7,503 (46.5) |
| Â | Hormone therapy | 408 (58.7) | 236 (59.7) | 31 (58.5) | 0.942 | 9,363 (58.0) |
III | Â | n = 103 | n = 69 | n = 6 | Â | n = 3,690 |
| Â | Radiation | 91 (88.3) | 62 (89.9) | 6 (100.0) | 0.657 | 3,124 (84.7) |
| Â | Surgery | 95 (92.2) | 64 (92.8) | 6 (100.0) | 0.777 | 2,921 (79.2) |
|  |    Surgery with radiation | 84 (81.6) | 60 (87.0) | 6 (100.0) | 0.355 | 2,634 (71.4) |
|  |    Surgery without radiation | 11 (10.7) | 4 (5.8) | 0 (0.0) | 0.397 | 287 (7.8) |
| Â | Chemotherapy | 87 (84.5) | 57 (82.6) | 6 (100.0) | 0.531 | 2,449 (66.4) |
| Â | Hormone therapy | 75 (72.8) | 40 (58.0) | 4 (66.7) | 0.128 | 2,199 (59.6) |
IV | Â | n = 153 | n = 97 | n = 8 | Â | n = 2,040 |
| Â | Radiation | 119 (77.8) | 77 (79.4) | 6 (75.0) | 0.931 | 1,437 (70.4) |
| Â | Surgery | 93 (60.8) | 58 (59.8) | 4 (50.0) | 0.830 | 878 (43.0) |
|  |    Surgery with radiation | 79 (51.6) | 47 (48.5) | 3 (37.5) | 0.685 | 643 (31.5) |
|  |    Surgery without radiation | 14 (9.2) | 11 (11.3) | 1 (12.5) | 0.832 | 235 (11.5) |
| Â | Chemotherapy | 95 (62.1) | 59 (60.8) | 5 (62.5) | 0.979 | 867 (42.5) |
| Â | Hormone therapy | 95 (62.1) | 62 (63.9) | 5 (62.5) | 0.958 | 1,302 (63.8) |