Table 1 Baseline characteristics
Non-Hispanic White (n = 115,651) | Hispanic White (n = 8213) | Black (n = 10,814) | Asian/Pacific Islander (n = 5455) | ||||||
|---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | P | |
Age | < 0.001 | ||||||||
< 50 years | 20,838 | 18.0 | 2095 | 25.5 | 2309 | 21.4 | 1838 | 33.7 | |
50 years or older | 94,813 | 82.0 | 6118 | 74.5 | 8505 | 78.6 | 3617 | 66.3 | |
Facility | < 0.001 | ||||||||
Nonacademic | 78,847 | 68.2 | 5108 | 62.2 | 5978 | 55.3 | 2939 | 53.9 | |
Academic | 34,139 | 29.5 | 2777 | 33.8 | 4412 | 40.8 | 2225 | 40.8 | |
Not available | 2665 | 2.3 | 328 | 4.0 | 424 | 3.9 | 291 | 5.3 | |
Insurance | < 0.001 | ||||||||
None | 916 | 0.8 | 349 | 4.2 | 236 | 2.2 | 98 | 1.8 | |
Private | 69,729 | 60.3 | 4624 | 56.3 | 5617 | 51.9 | 3678 | 67.4 | |
Government | 43,908 | 38.0 | 3129 | 38.1 | 4837 | 44.7 | 1615 | 29.6 | |
Not available | 1098 | 0.9 | 111 | 1.4 | 124 | 1.1 | 64 | 1.2 | |
Income | < 0.001 | ||||||||
Above median | 69,938 | 60.5 | 4525 | 55.1 | 3767 | 34.8 | 3968 | 72.7 | |
Below median | 28,332 | 24.5 | 2720 | 33.1 | 5459 | 50.5 | 769 | 14.1 | |
Not available | 17,381 | 15.0 | 968 | 11.8 | 1588 | 14.7 | 718 | 13.2 | |
Education | < 0.001 | ||||||||
Above median | 66,644 | 57.6 | 3481 | 42.4 | 3076 | 28.4 | 3099 | 56.8 | |
Below median | 31,800 | 27.5 | 3777 | 46.0 | 6154 | 56.9 | 1640 | 30.1 | |
Not available | 17,207 | 14.9 | 955 | 11.6 | 1584 | 14.6 | 716 | 13.1 | |
CDS | < 0.001 | ||||||||
0 | 98,533 | 85.2 | 6955 | 84.7 | 8276 | 76.5 | 4655 | 85.3 | |
1 | 13,807 | 11.9 | 1014 | 12.3 | 1953 | 18.1 | 667 | 12.2 | |
2 + | 3311 | 2.9 | 244 | 3.0 | 585 | 5.4 | 133 | 2.4 | |
Year | < 0.001 | ||||||||
2006–2013 | 46,201 | 39.9 | 3508 | 42.7 | 4062 | 37.6 | 1935 | 35.5 | |
2014–2017 | 68,843 | 59.5 | 4611 | 56.1 | 6692 | 61.9 | 3493 | 64.0 | |
Histology | < 0.001 | ||||||||
Ductal or lobular carcinoma | 99,610 | 86.1 | 7075 | 86.1 | 9145 | 84.6 | 4645 | 85.2 | |
Other | 16,041 | 13.9 | 1138 | 13.9 | 1669 | 15.4 | 810 | 14.8 | |
PR | < 0.001 | ||||||||
Positive | 105,011 | 90.8 | 7481 | 91.1 | 9472 | 87.6 | 5002 | 91.7 | |
Negative | 10,640 | 9.2 | 732 | 8.9 | 1342 | 12.4 | 453 | 8.3 | |
T staging | < 0.001 | ||||||||
1 | 86,854 | 75.1 | 6018 | 73.3 | 7659 | 70.8 | 3889 | 71.3 | |
2 | 27,139 | 23.5 | 2096 | 25.5 | 2979 | 27.5 | 1510 | 27.7 | |
3 | 1658 | 1.4 | 99 | 1.2 | 176 | 1.6 | 56 | 1.0 | |
N staging | < 0.001 | ||||||||
0 | 98,537 | 85.2 | 6965 | 84.8 | 9040 | 83.6 | 4681 | 85.8 | |
1a | 17,114 | 14.8 | 1248 | 15.2 | 1774 | 16.4 | 774 | 14.2 | |
Grade | < 0.001 | ||||||||
1 | 33,175 | 28.7 | 2157 | 26.3 | 2434 | 22.5 | 1320 | 24.2 | |
2 | 61,582 | 53.2 | 4376 | 53.3 | 5659 | 52.3 | 3071 | 56.3 | |
3 | 16,665 | 14.4 | 1402 | 17.1 | 2341 | 21.6 | 899 | 16.5 | |
Other | 71 | 0.1 | 5 | 0.1 | 5 | 0.0 | 2 | 0.0 | |
Not available | 4158 | 3.6 | 273 | 3.3 | 375 | 3.5 | 163 | 3.0 | |
RS | < 0.001 | ||||||||
0–15 | 573,239 | 495.7 | 4073 | 49.6 | 4797 | 44.4 | 2685 | 49.2 | |
16–25 | 42,037 | 36.3 | 2943 | 35.8 | 3833 | 35.4 | 1942 | 35.6 | |
≥ 26 | 16,285 | 14.1 | 1197 | 14.6 | 2184 | 20.2 | 828 | 15.2 | |
LVSI | < 0.001 | ||||||||
No | 89,180 | 77.1 | 6064 | 73.8 | 8228 | 76.1 | 4149 | 76.1 | |
Yes | 13,892 | 12.0 | 1075 | 13.1 | 1293 | 12.0 | 753 | 13.8 | |
Not available | 12,579 | 10.9 | 1074 | 13.1 | 1293 | 12.0 | 553 | 10.1 | |
Chemotherapy | < 0.001 | ||||||||
No | 92,083 | 79.6 | 6348 | 77.3 | 8078 | 74.7 | 4181 | 76.6 | |
Yes | 23,568 | 20.4 | 1865 | 22.7 | 2736 | 25.3 | 1274 | 23.4 | |
Radiation | < 0.001 | ||||||||
No | 35,409 | 30.6 | 2775 | 33.8 | 3272 | 30.3 | 1883 | 34.5 | |
Yes | 79,007 | 68.3 | 5317 | 64.7 | 7393 | 68.4 | 3519 | 64.5 | |
Not available | 1209 | 1.0 | 119 | 1.4 | 143 | 1.3 | 51 | 0.9 | |
Surgery | < 0.001 | ||||||||
Lumpectomy | 78,791 | 68.1 | 5374 | 65.4 | 7411 | 68.5 | 3402 | 62.4 | |
Mastectomy | 36,831 | 31.8 | 2839 | 34.6 | 3400 | 31.4 | 2052 | 37.6 | |
Other | 29 | 0.0 | 0 | 0.0 | 3 | 0.0 | 1 | 0.0 | |
Margin | 0.01 | ||||||||
Negative | 111,871 | 96.7 | 7915 | 96.4 | 10,409 | 96.3 | 5251 | 96.3 | |
Positive | 3384 | 2.9 | 270 | 3.3 | 354 | 3.3 | 178 | 3.3 | |
Not available | 396 | 0.3 | 28 | 0.3 | 51 | 0.5 | 26 | 0.5 | |