Table 1. Descriptive Characteristics of Women Aged 40 to 64 Years With a Diagnosis of Incident, Invasive Stage I to III Breast Cancer in the Surveillance, Epidemiology, and End Results Program by Race/Ethnicity, 2010-2016.
| Characteristic at Breast Cancer Diagnosis | Women, No. (%) | ||||
|---|---|---|---|---|---|
| White (n = 113 079) | Black (n = 20 822) | American Indian or Alaskan Native (n = 1098) | Asian or Pacific Islander (n = 18 231) | Hispanic (n = 23 845) | |
| Age, mean (SD), y | 54.0 (6.7) | 53.3 (6.7) | 53.6 (6.8) | 52.6 (6.9) | 52.1 (6.9) |
| 40-44 | 11 763 (10.4) | 2632 (12.6) | 127 (11.6) | 2814 (15.4) | 3945 (16.5) |
| 45-49 | 19 591 (17.3) | 3906 (18.8) | 195 (17.8) | 3834 (21.0) | 5258 (22.1) |
| 50-54 | 24 674 (21.8) | 4679 (22.5) | 243 (22.1) | 3943 (21.6) | 5372 (22.5) |
| 55-59 | 26 681 (23.6) | 4899 (23.5) | 259 (23.6) | 3753 (20.6) | 4842 (20.3) |
| 60-64 | 30 370 (26.9) | 4706 (22.6) | 274 (25.0) | 3887 (21.3) | 4428 (18.6) |
| AJCC stage | |||||
| I | 60 961 (53.9) | 8620 (41.4) | 509 (46.4) | 8914 (48.9) | 10 381 (43.5) |
| II | 39 109 (34.6) | 8654 (41.6) | 427 (38.9) | 7156 (39.3) | 9648 (40.5) |
| III | 13 009 (11.5) | 3548 (17.0) | 162 (14.8) | 2161 (11.9) | 3816 (16.0) |
| Breast cancer subtype | |||||
| HR positive and ERBB2positive | 12 068 (10.7) | 2405 (11.6) | 148 (13.5) | 2352 (12.9) | 2996 (12.6) |
| HR negative and ERBB2 positive | 4723 (4.2) | 1230 (5.9) | 55 (5.0) | 1227 (6.7) | 1326 (5.6) |
| HR positive and ERBB2 negative | 79 575 (70.4) | 11 564 (55.5) | 725 (66.0) | 12 162 (66.7) | 15 186 (63.7) |
| Triple negativea | 10 893 (9.6) | 4407 (21.2) | 113 (10.3) | 1403 (7.7) | 2746 (11.5) |
| Unknown | 5820 (5.1) | 1216 (5.8) | 57 (5.2) | 1087 (6.0) | 1591 (6.7) |
| Marital status | |||||
| Not married | 34 262 (30.3) | 11 622 (55.8) | 461 (42.0) | 4613 (25.3) | 8616 (36.1) |
| Married | 74 333 (65.7) | 8148 (39.1) | 533 (48.5) | 12 898 (70.7) | 14 112 (59.2) |
| Health insurance status | |||||
| Insured | 100 996 (89.3) | 15 524 (74.6) | 634 (57.7) | 15 119 (82.9) | 15 851 (66.5) |
| Uninsured or Medicaid | 12 083 (10.7) | 5298 (25.4) | 464 (42.3) | 3112 (17.1) | 7994 (33.5) |
| ACS County Attributes | |||||
| Median income, quintileb | |||||
| First | 24 216 (21.4) | 7634 (36.7) | 328 (29.9) | 642 (3.5) | 3477 (14.6) |
| Second | 24 749 (21.9) | 5522 (26.5) | 172 (15.7) | 5028 (27.6) | 8721 (36.6) |
| Third | 18 394 (16.3) | 2949 (14.2) | 122 (11.1) | 1377 (7.6) | 3614 (15.2) |
| Fourth | 22 610 (20.0) | 2392 (11.5) | 371 (33.8) | 5267 (28.9) | 4403 (18.5) |
| Fifth | 23 099 (20.4) | 2325 (11.2) | 105 (9.6) | 5917 (32.5) | 3629 (15.2) |
| % With <high school education, quintilec | |||||
| First | 28 287 (25.0) | 2583 (12.4) | 407 (37.1) | 2689 (14.7) | 1692 (7.1) |
| Second | 25 368 (22.4) | 4561 (21.9) | 150 (13.7) | 3920 (21.5) | 2699 (11.3) |
| Third | 20 535 (18.2) | 3632 (17.4) | 174 (15.8) | 4905 (26.9) | 4653 (19.5) |
| Fourth | 21 305 (18.8) | 6365 (30.6) | 181 (16.5) | 2377 (13.0) | 5178 (21.7) |
| Fifth | 17 573 (15.5) | 3681 (17.7) | 186 (16.9) | 4340 (23.8) | 9622 (40.4) |
| % Living at <150% federal poverty level, quintiled | |||||
| First | 26 744 (23.7) | 2248 (10.8) | 123 (11.2) | 6010 (33.0) | 2844 (11.9) |
| Second | 24 177 (21.4) | 2791 (13.4) | 389 (35.4) | 3322 (18.2) | 2921 (12.2) |
| Third | 23 668 (20.9) | 3812 (18.3) | 144 (13.1) | 2987 (16.4) | 4589 (19.2) |
| Fourth | 18 486 (16.3) | 5403 (25.9) | 112 (10.2) | 4771 (26.2) | 8456 (35.5) |
| Fifth | 19 993 (17.7) | 6568 (31.5) | 330 (30.1) | 1141 (6.3) | 5034 (21.1) |
| % Living in language isolation, quintilee | |||||
| First | 28 485 (25.2) | 5422 (26.0) | 155 (14.1) | 494 (2.7) | 925 (3.9) |
| Second | 27 246 (24.1) | 5726 (27.5) | 450 (41.0) | 1651 (9.1) | 1644 (6.9) |
| Third | 22 820 (20.2) | 3961 (19.0) | 216 (19.7) | 3082 (16.9) | 4953 (20.8) |
| Fourth | 19 224 (17.0) | 2068 (9.9) | 176 (16.0) | 6097 (33.4) | 6899 (28.9) |
| Fifth | 15 293 (13.5) | 3645 (17.5) | 101 (9.2) | 6907 (37.9) | 9423 (39.5) |
| % Living in urban area, quintilef | |||||
| First | 28 757 (25.4) | 3609 (17.3) | 575 (52.4) | 644 (3.5) | 1899 (8.0) |
| Second | 26 229 (23.2) | 4103 (19.7) | 197 (17.9) | 2281 (12.5) | 4214 (17.7) |
| Third | 23 030 (20.4) | 272 (1.3) | 163 (14.8) | 2898 (15.9) | 6030 (25.3) |
| Fourth | 23 095 (20.4) | 6448 (31.0) | 125 (11.4) | 8624 (47.3) | 8450 (35.4) |
| Fifth | 11 957 (10.6) | 3910 (18.8) | 38 (3.5) | 3784 (20.8) | 3251 (13.6) |
Abbreviations: ACS, American Community Survey (2010-2014, 2012-2016) county-level variables; AJCC, American Joint Committee on Cancer; HR, hormone receptor.
a
Triple negative indicates ERBB2, estrogen, and progesterone receptor negative.
b
Median household income quintiles (range, $19 150-$123 970 in 2014 inflation-adjusted USD).
c
Percentage with less than high school education (range, 1.3%-53.3%).
d
Percentage of persons who are below 150% of the federal poverty level (range, 7.0%-69.3%).
e
Percentage of households in which no one aged 14 years or older speaks English only or speaks English “very well” (range, 0%-38.6%).
f
Percentage of persons living in census-defined urban areas (range, 0%-100%; https://www.census.gov/prod/cen2010/doc/sf1.pdf).