Table 2.
Clinical-pathologic features of breast cancer by race
| IP n (%) |
NHW n (%) |
P value | |
|---|---|---|---|
| Behavior | 0.229 | ||
| Invasive | 1,965 (82.1) | 461,588 (83.0) | |
| In situ | 428 (17.9) | 94,244 (17.0) | |
| Stage (invasive) | <0.001 | ||
| I | 697 (35.5) | 219,188 (47.5) | |
| II | 852 (43.4) | 159,916 (34.6) | |
| III | 213 (10.8) | 31,578 (6.8) | |
| IV | 98 (5.0) | 19,942 (4.3) | |
| Other/unknown | 105 (5.3) | 30,964 (6.7) | |
| Grade | |||
| In situ | 0.011 | ||
| I | 47 (11.0) | 8,071 (8.6) | |
| II | 119 (27.8) | 21,143 (22.4) | |
| III | 68 (15.9) | 15,198 (16.1) | |
| IV | 36 (8.4) | 9,418 (10.0) | |
| Unknown | 158 (36.9) | 40,414 (42.9) | |
| Invasive | <0.001 | ||
| I | 226 (11.5) | 77,505 (16.8) | |
| II | 647 (32.9) | 160,516 (34.8) | |
| III | 798 (40.6) | 127,942 (27.7) | |
| IV | 45 (2.3) | 9,223 (2.0) | |
| Unknown | 249 (12.7) | 86,402 (18.7) | |
| Tumor size (invasive) | <0.001 | ||
| No mass | 0 (0) | 902 (0.2) | |
| Microscopic focus/foci | 34 (1.7) | 7,353 (1.6) | |
| <1.0 cm | 246 (12.5) | 79,515 (17.2) | |
| 1.0 to <2.0 cm | 534 (27.2) | 160,930 (34.9) | |
| ≥2.0 cm | 978 (49.8) | 170,723 (37.0) | |
| Unknown/other | 173 (8.8) | 42,165 (9.1) | |
| Nodal status (invasive) | <0.001 | ||
| Positive | 708 (36.0) | 126,497 (27.4) | |
| 1–3 nodes positive | 409 (20.8) | 80,725 (17.5) | |
| 4–9 nodes positive | 180 (9.2) | 28,355 (6.1) | |
| 10 nodes positive | 119 (6.1) | 17,417 (3.8) | |
| Negative | 1,000 (50.9) | 250,646 (54.3) | |
| No nodes examined | 230 (11.7) | 77,848 (16.9) | |
| Not known | 27 (1.4) | 6,597 (1.4) |
Cancers diagnosed 1988–2006
IP Asian Indian/Pakistani, NHW non-Hispanic white