Table 1.
U.S. non-Hispanic White | U. S. Hispanic/Native American or Mexican | |||||||
---|---|---|---|---|---|---|---|---|
Controls | Cases | Controls | Cases | |||||
N | % | N | % | N | % | N | % | |
Total | 1585 | 37.9 | 1481 | 41.2 | 2597 | 62.1 | 2111 | 58.8 |
Study | ||||||||
4-CBCS | 1321 | 83.3 | 1227 | 82.8 | 723 | 27.8 | 597 | 28.3 |
MBCS | 0 | 0 | 0 | 0 | 994 | 38.3 | 816 | 38.7 |
SFBCS | 264 | 16.7 | 254 | 17.2 | 880 | 33.9 | 698 | 33.1 |
Age (years) | ||||||||
<40 | 116 | 7.3 | 89 | 6 | 311 | 12 | 200 | 9.5 |
40–49 | 408 | 25.7 | 409 | 27.6 | 831 | 32 | 713 | 33.8 |
50–59 | 409 | 25.8 | 413 | 27.9 | 756 | 29.1 | 617 | 29.2 |
60–69 | 349 | 22 | 361 | 24.4 | 526 | 20.3 | 430 | 20.4 |
>70 | 303 | 19.1 | 209 | 14.1 | 173 | 6.7 | 151 | 7.2 |
Mean | 56.6 | 56 | 52.3 | 52.7 | ||||
Menopausal Status | ||||||||
Pre-menopausal | 494 | 31.5 | 489 | 33.5 | 1027 | 40.7 | 836 | 40.9 |
Post-menopausal | 1075 | 68.5 | 970 | 66.5 | 1499 | 59.3 | 1210 | 59.1 |
Estimated Percent Native American Ancestry | ||||||||
0–28 | 1577 | 99.5 | 1472 | 99.4 | 278 | 10.7 | 275 | 13 |
29–70 | 7 | 0.4 | 7 | 0.5 | 1686 | 64.9 | 1393 | 66 |
71–100 | 1 | 0.1 | 2 | 0.1 | 633 | 24.4 | 443 | 21 |
ER/PR Status2 | ||||||||
ER+/PR+ | NA1 | 695 | 68.2 | NA1 | 605 | 61.9 | ||
ER+/PR- | NA1 | 121 | 11.9 | NA1 | 115 | 11.8 | ||
ER−/PR+ | NA1 | 15 | 1.5 | NA1 | 28 | 2.9 | ||
ER−/PR− | NA1 | 188 | 18.4 | NA1 | 229 | 23.4 | ||
Vital Status2,3 | ||||||||
Deceased | NA1 | 255 | 21.4 | NA1 | 229 | 19.8 | ||
Alive | NA1 | 935 | 78.6 | NA1 | 929 | 80.2 | ||
Cause of Death2,3 | ||||||||
Breast Cancer | NA1 | 121 | 47.5 | NA1 | 128 | 55.9 | ||
Other | NA1 | 134 | 52.5 | NA1 | 101 | 44.1 | ||
SEER Summary Stage2,3 | ||||||||
Local | NA1 | 831 | 71 | NA1 | 650 | 59.6 | ||
Regional | NA1 | 325 | 27.8 | NA1 | 432 | 39.6 | ||
Distant | NA1 | 15 | 1.3 | NA1 | 9 | 0.8 | ||
Smoking Status4 | ||||||||
Never | 794 | 60.3 | 688 | 56.1 | 1616 | 72.1 | 1298 | 70.1 |
Former | 360 | 27.3 | 386 | 31.5 | 347 | 15.5 | 322 | 17.4 |
Current | 163 | 12.4 | 152 | 12.4 | 278 | 12.4 | 231 | 12.5 |
BMI (kg/m2) | ||||||||
<25 | 699 | 44.4 | 678 | 45.9 | 453 | 17.6 | 492 | 23.5 |
25–29.9 | 465 | 29.5 | 433 | 29.3 | 951 | 36.9 | 768 | 36.7 |
≥30 | 412 | 26.1 | 367 | 24.8 | 1172 | 45.5 | 832 | 39.8 |
NSAID use5 | ||||||||
No | 708 | 53.7 | 670 | 54.7 | 446 | 61.7 | 395 | 66.2 |
Yes | 610 | 46.3 | 554 | 45.3 | 277 | 38.3 | 202 | 33.8 |
Dietary Oxidative Balance Score6 [mean (SD)] | ||||||||
4-CBCS | 6.3 (2.7) | 6.3 (2.6) | 6.7 (2.5) | 6.5 (2.6) | ||||
MBCS | NA1 | NA1 | 5.9 (2.0) | 5.7 (2.0) | ||||
SFBCS | 5.6 (2.6) | 5.7 (2.6) | 6.9 (2.5) | 6.1 (2.5) |
Data not applicable (NA)
Data unavailable from Mexico Breast Cancer Study (MBCS).
Includes first primary invasive breast cancer cases from the 4-Corners Breast Cancer Study (4-CBCS) and San Francisco Bay Area Breast Cancer Study (SFBCS) only
Data available for a subset of SFBCS participants only
Data only available for the 4-CBCS
Dietary Oxidative Balance Score (DOBS) includes alcohol (pro-oxidant), vitamin C, vitamin E, beta carotene (data not available for MBCS), folic acid, and dietary fiber (anti-oxidants).