TABLE 1.
Patient and Tumor Characteristics
| Variable | All Patients (N = 40,890) | Hispanic (n = 3,267) | NHA (n = 1,368) | NHB (n = 9,672) | NHW (n = 26,150) | NHO (n = 433) | P a | P b |
|---|---|---|---|---|---|---|---|---|
| Age, years | <.001 | <.001 | ||||||
| <50, No. (%) | 16,416 (40.1) | 1,857 (56.8) | 634 (46.3) | 3,882 (40.1) | 9,817 (37.5) | 226 (52.2) | ||
| ≥50, No. (%) | 24,474 (59.9) | 1,410 (43.2) | 734 (53.7) | 5,790 (59.9) | 16,333 (62.5) | 207 (47.8) | ||
| Median (IQR) | 53 (44-61) | 47 (39-56) | 51 (41-60) | 52 (44-60) | 54 (45-63) | 49 (40-57) | <.001 | <.001 |
| Charlson/Deyo comorbidity score, No. (%) | <.001 | <.001 | ||||||
| 0 | 35,181 (86) | 2,858 (87.5) | 1,221 (89.3) | 7,895 (81.6) | 22,838 (87.3) | 369 (85.2) | ||
| 1 | 4,528 (11.1) | 332 (10.2) | 135 (9.9) | 1,391 (14.4) | 2,621 (10) | 49 (11.3) | ||
| ≥2 | 1,181 (2.9) | 77 (2.4) | 12 (0.9) | 386 (4) | 691 (2.6) | 15 (3.5) | ||
| Histology, No. (%) | <.001 | <.001 | ||||||
| Ductal | 36,481 (89.2) | 2,914 (89.2) | 1,231 (90) | 8,730 (90.3) | 23,205 (88.7) | 401 (92.6) | ||
| Lobular | 1,609 (3.9) | 121 (3.7) | 62 (4.5) | 309 (3.2) | 1,104 (4.2) | 13 (3) | ||
| Other | 2,800 (6.8) | 232 (7.1) | 75 (5.5) | 633 (6.5) | 1,841 (7) | 19 (4.4) | ||
| Grade, No. (%) | <.001 | <.001 | ||||||
| 1 | 313 (0.8) | 21 (0.6) | 15 (1.1) | 51 (0.5) | 225 (0.9) | 1 (0.2) | ||
| 2 | 5,407 (13.2) | 359 (11) | 188 (13.7) | 1,039 (10.7) | 3,759 (14.4) | 62 (14.3) | ||
| 3 | 32,888 (80.4) | 2,706 (82.8) | 1,097 (80.2) | 8,053 (83.3) | 20,687 (79.1) | 345 (79.7) | ||
| Clinical T-stage, No. (%) | <.001 | <.001 | ||||||
| cT0/is | 139 (0.3) | 12 (0.4) | 2 (0.1) | 33 (0.3) | 91 (0.3) | 1 (0.2) | ||
| cT1 | 8,483 (20.7) | 571 (17.5) | 222 (16.2) | 1,828 (18.9) | 5,782 (22.1) | 80 (18.5) | ||
| cT2 | 21,718 (53.1) | 1,730 (53) | 811 (59.3) | 4,963 (51.3) | 13,973 (53.4) | 241 (55.7) | ||
| cT3 | 6,626 (16.2) | 669 (20.5) | 218 (15.9) | 1,842 (19) | 3,826 (14.6) | 71 (16.4) | ||
| cT4 | 3,924 (9.6) | 285 (8.7) | 115 (8.4) | 1,006 (10.4) | 2,478 (9.5) | 40 (9.2) | ||
| Clinical N-stage, No. (%) | <.001 | <.001 | ||||||
| cN0 | 20,809 (50.9) | 1,523 (46.6) | 719 (52.6) | 4,269 (44.1) | 14,077 (53.8) | 221 (51) | ||
| cN1 | 15,058 (36.8) | 1,273 (39) | 499 (36.5) | 3,986 (41.2) | 9,143 (35) | 157 (36.3) | ||
| cN2 | 2,838 (6.9) | 263 (8.1) | 85 (6.2) | 795 (8.2) | 1,664 (6.4) | 31 (7.2) | ||
| cN3 | 2,185 (5.3) | 208 (6.4) | 65 (4.8) | 622 (6.4) | 1,266 (4.8) | 24 (5.5) | ||
| Income level, No. (%) | <.001 | <.001 | ||||||
| <$48,000 USD | 13,952 (34.1) | 1,425 (43.6) | 230 (16.8) | 4,994 (51.6) | 7,177 (27.4) | 126 (29.1) | ||
| ≥$48,000 USD | 21,331 (52.2) | 1,436 (44) | 952 (69.6) | 3,398 (35.1) | 15,300 (58.5) | 245 (56.6) | ||
| Education level, No. (%) | <.001 | <.001 | ||||||
| HS graduation rate ≤87% | 15,555 (38) | 2,032 (62.2) | 443 (32.4) | 5,339 (55.2) | 7,588 (29) | 153 (35.3) | ||
| HS graduation rate >87% | 19,736 (48.3) | 829 (25.4) | 739 (54) | 3,054 (31.6) | 14,895 (57) | 219 (50.6) | ||
| Community type, No. (%) | <.001 | <.001 | ||||||
| Metro | 35,137 (85.9) | 3,090 (94.6) | 1,311 (95.8) | 8,820 (91.2) | 21,556 (82.4) | 360 (83.1) | ||
| Urban | 4,142 (10.1) | 134 (4.1) | 27 (2) | 559 (5.8) | 3,377 (12.9) | 45 (10.4) | ||
| Rural | 511 (1.2) | 11 (0.3) | 5 (0.4) | 81 (0.8) | 401 (1.5) | 13 (3) | ||
| Insurance status, No. (%) | <.001 | <.001 | ||||||
| Private | 25,617 (62.6) | 1,570 (48.1) | 895 (65.4) | 5,404 (55.9) | 17,499 (66.9) | 249 (57.5) | ||
| Government | 13,370 (32.7) | 1,207 (36.9) | 410 (30) | 3,717 (38.4) | 7,872 (30.1) | 164 (37.9) | ||
| None | 1,429 (3.5) | 440 (13.5) | 50 (3.7) | 431 (4.5) | 490 (1.9) | 18 (4.2) | ||
| Facility type, No. (%) | <.001 | <.001 | ||||||
| Academic/research | 14,930 (36.5) | 1,536 (47) | 619 (45.2) | 4,078 (42.2) | 8,526 (32.6) | 171 (39.5) | ||
| Integrated network | 9,286 (22.7) | 612 (18.7) | 288 (21.1) | 2,157 (22.3) | 6,137 (23.5) | 92 (21.2) | ||
| Comprehensive community | 14,462 (35.4) | 952 (29.1) | 414 (30.3) | 3,031 (31.3) | 9,907 (37.9) | 158 (36.5) | ||
| Community | 2,202 (5.4) | 166 (5.1) | 47 (3.4) | 405 (4.2) | 1,572 (6) | 12 (2.8) | ||
| Facility location, No. (%) | <.001 | <.001 | ||||||
| Midwest | 10,565 (25.8) | 320 (9.8) | 199 (14.5) | 1,950 (20.2) | 8,024 (30.7) | 72 (16.6) | ||
| Northeast | 7,005 (17.1) | 585 (17.9) | 295 (21.6) | 1,397 (14.4) | 4,662 (17.8) | 66 (15.2) | ||
| South | 17,363 (42.5) | 1,354 (41.4) | 369 (27) | 5,904 (61) | 9,570 (36.6) | 166 (38.3) | ||
| West | 5,947 (14.5) | 1,007 (30.8) | 505 (36.9) | 420 (4.3) | 3,886 (14.9) | 129 (29.8) |
NOTE. Percentages may not add up to 100 because of rounding or missing values.
Abbreviations: HS, high school; N, node; NHA, Non-Hispanic Asian; NHB, Non-Hispanic Black; NHO, Non-Hispanic Other; NHW, Non-Hispanic White; T, tumor; USD, US dollars.
a
P value for comparison of all race/ethnicity groups.
b
P value for NHW versus NHB.