Table 1 Characteristics of Hispanic women diagnosed with invasive breast cancer (n = 37,695) by nativity, California, 1988-2005.
Characteristics | US-born Hispanics (N = 18,330) | Foreign-born Hispanics (N = 19,365) | Â | ||
|---|---|---|---|---|---|
| Â | Case No. | (%) | Case No. | (%) | p-value |
Age groups | Â | Â | Â | Â | Â |
   <40 years | 2,264 | (12.4) | 2,545 | (13.1) |  |
   40-49 years | 4,455 | (24.3) | 5,130 | (26.5) |  |
   50-59 years | 4,358 | (23.8) | 4,567 | (23.6) |  |
   60-69 years | 3,807 | (20.8) | 3,569 | (18.4) |  |
   70+ years | 3,446 | (18.8) | 3,554 | (18.4) | p < 0.01 |
Stage at diagnosis | Â | Â | Â | Â | Â |
   Local | 9,884 | (53.9) | 9,306 | (48.1) |  |
   Regional | 6,335 | (34.6) | 7,229 | (37.3) |  |
   Distant | 815 | (4.5) | 851 | (4.4) |  |
   Missing | 1,296 | (7.1) | 1,979 | (10.2) | p < 0.01 |
Histology | Â | Â | Â | Â | Â |
   Ductal | 12,906 | (70.4) | 13,333 | (68.9) |  |
   Lobular | 1,166 | (6.4) | 1,051 | (5.4) |  |
   Mixed/Other | 4,258 | (23.2) | 4,981 | (25.7) | p < 0.01 |
Estrogen receptor (ER) status | Â | Â | Â | Â | Â |
   Positive | 8,972 | (49.0) | 8,649 | (44.7) |  |
   Negative | 3,551 | (19.4) | 3,822 | (19.7) |  |
   Other | 5,807 | (31.7) | 6,894 | (35.6) | p < 0.01 |
Grade | Â | Â | Â | Â | Â |
   Grade I | 2,313 | (12.6) | 1,996 | (10.3) |  |
   Grade II | 5,737 | (31.3) | 5,795 | (29.9) |  |
   Grade III | 6,273 | (34.2) | 7,237 | (37.4) |  |
   Grade IV | 473 | (2.6) | 536 | (2.8) |  |
   Unknown | 3,534 | (19.3) | 3,801 | (19.6) | p < 0.01 |
Chemotherapy treatment | Â | Â | Â | Â | Â |
   Yes | 8,093 | (44.2) | 8,862 | (45.8) |  |
   No | 9,821 | (53.6) | 9,845 | (50.8) |  |
   Missing | 416 | (2.3) | 658 | (3.4) | p < 0.01 |
Radiation treatment | Â | Â | Â | Â | Â |
   Yes | 7,686 | (41.9) | 7,323 | (37.8) |  |
   No | 10,643 | (58.1) | 12,042 | (62.2) |  |
   Missing | 1 | (<0.1) | 0 | (0) | p < 0.01 |
Surgery | Â | Â | Â | Â | Â |
   Yes | 17,421 | (95.0) | 18,079 | (93.4) |  |
   No | 891 | (4.9) | 1,268 | (6.6) |  |
   Missing | 18 | (0.1) | 18 | (0.1) | p < 0.01 |
Hormone therapy treatment | Â | Â | Â | Â | Â |
   Yes | 5,461 | (29.8) | 5,116 | (26.4) |  |
   No | 12,368 | (67.5) | 13,609 | (70.3) |  |
   Missing | 501 | (2.7) | 640 | (3.3) | p < 0.01 |
Number of lymph nodes | Â | Â | Â | Â | Â |
   0 | 9,514 | (51.9) | 8,800 | (45.4) |  |
   1-3 | 3,754 | (20.5) | 3,910 | (20.2) |  |
   ≥4 | 2,592 | (14.1) | 3,261 | (16.8) |  |
   Missing | 2,470 | (13.5) | 3,394 | (17.5) | p < 0.01 |
Tumor size (mm) | Â | Â | Â | Â | Â |
   ≤20 mm | 1,601 | (8.7) | 1,814 | (9.4) |  |
   >20 mm | 16,727 | (91.3) | 17,544 | (90.6) |  |
   Missing | 2 | (<0.1) | 7 | (<0.1) | p = 0.03 |
Neighborhood SES* (quintiles) | Â | Â | Â | Â | Â |
   1 (lowest) | 4,030 | (22.0) | 6,971 | (36.0) |  |
   2 | 4,266 | (23.3) | 4,727 | (24.4) |  |
   3 | 4,092 | (22.3) | 3,389 | (17.5) |  |
   4 | 3,429 | (18.7) | 2,465 | (12.7) |  |
   5 (highest) | 2,513 | (13.7) | 1,813 | (9.4) | p < 0.01 |
Hispanic enclave (quintiles) | Â | Â | Â | Â | Â |
   1 (lowest) | 2,080 | (11.4) | 859 | (4.4) |  |
   2 | 3,035 | (16.6) | 1,796 | (9.3) |  |
   3 | 3,786 | (20.7) | 2,722 | (14.1) |  |
   4 | 4,668 | (25.5) | 4,732 | (24.4) |  |
   5 (highest) | 4,761 | (26.0) | 9,256 | (47.8) | p < 0.01 |
Combined neighborhood SES* and Hispanic enclave** | Â | Â | Â | Â | Â |
   High SES, low enclave | 7,255 | (39.6) | 4,525 | (23.4) |  |
   High SES, high enclave | 2,779 | (15.2) | 3,142 | (16.2) |  |
   Low SES, low enclave | 1,646 | (9.0) | 852 | (4.4) |  |
   Low SES, high enclave | 6,650 | (36.3) | 10,846 | (56.0) | p < 0.01 |
Vital Status | Â | Â | Â | Â | Â |
   Dead | 5,976 | (32.6) | 6,018 | (31.1) |  |
   Alive | 12,345 | (67.4) | 13,356 | (68.9) | p < 0.01 |
Cause of death (N = 11,994) | Â | Â | Â | Â | Â |
   Breast cancer | 3,464 | (58.0) | 3,654 | (60.7) |  |
   Other cancer | 528 | (8.8) | 419 | (7.0) |  |
   Circulatory disease | 938 | (15.7) | 782 | (13.0) |  |
   Other causes | 882 | (14.8) | 638 | (10.6) |  |
   Unknown cause | 164 | (2.7) | 525 | (8.7) | p < 0.01 |