Table I.
Patient and tumor characteristics in women diagnosed with breast cancer by race/ethnicity, 2010-2016.
| Number of cases (%) | ||||||
|---|---|---|---|---|---|---|
| Characteristic | NH white | NH black | NH Asian | Hispanic white | Hispanic other | P-value |
| Age, years | <0.001 | |||||
| <45 | 22,814.0 (8.2) | 5,996.0 (13.6) | 5,343.0 (15.6) | 7,816.0 (8.4) | 282.0 (19.2) | |
| 45-54 | 51,741.0 (18.7) | 10,302.0 (23.3) | 8,711.0 (25.5) | 11,351.0 (26.7) | 403.0 (27.4) | |
| 55-64 | 71,755.0 (25.9) | 12,353.0 (28.0) | 9,119.0 (26.7) | 10,657.0 (25.1) | 371.0 (25.2) | |
| 65-74 | 72,836.0 (26.3) | 9,310.0 (21.1) | 6,910.0 (20.2) | 7,909.0 (18.6) | 263.0 (17.9) | |
| 75-84 | 42,222.0 (15.2) | 4,686.0 (10.6) | 3,086.0 (9.0) | 3,693.0 (8.7) | 121.0 (8.2) | |
| ≥85 | 15,951.0 (5.8) | 1,502.0 (3.4) | 972.0 (2.9) | 1,058.0 (2.5) | 31.0 (2.1) | |
| Marital status | <0.001 | |||||
| Married | 155,910.0 (56.2) | 14,708.0 (33.3) | 21,674.0 (63.5) | 22,778.0 (53.6) | 710.0 (48.3) | |
| Unmarried | 107,091.0 (38.6) | 26,784.0 (60.7) | 10,799.0 (31.6) | 17,381.0 (40.9) | 655.0 (44.5) | |
| Unknown | 14,318.0 (5.2) | 2,657.0 (6.0) | 1,668.0 (4.9) | 2,325.0 (5.5) | 106.0 (7.2) | |
| Health insurance | ||||||
| Uninsured | 2,773.0 (1.0) | 1,290.0 (2.9) | 585.0 (1.7) | 1,515.0 (3.6) | 56.0 (3.8) | |
| Medicaid | 20,206.0 (7.3) | 8,680.0 (19.7) | 5,007.0 (14.7) | 11,069.0 (26.1) | 249.0 (16.9) | |
| Insured | 249,130.0 (89.8) | 33,272.0 (75.4) | 27,976.0 (81.9) | 29,186.0 (68.7) | 1,124.0 (76.4) | |
| Unknown | 5,210.0 (1.9) | 907.0 (2.1) | 573.0 (1.7) | 714.0 (1.7) | 42.0 (2.9) | |
| Household income at county level, $ | ||||||
| 19,340-51,269 | 73,872.0 (26.6) | 17,263.0 (39.1) | 1,459.0 (4.3) | 7,331.0 (17.3) | 180.0 (12.2) | |
| 51,270-58,2549 | 59,866.0 (21.6) | 13,512.0 (30.6) | 9,728.0 (28.5) | 16,476.0 (38.8) | 497.0 (33.8) | |
| 58,250-70,5769 | 73,606.0 (26.5) | 7,690.0 (17.4) | 5,722.0 (16.8) | 9,579.0 (22.6) | 333.0 (22.6) | |
| ≥70,570 | 69,975.0 (25.2) | 5,684.0 (12.9) | 17,232.0 (50.5) | 9,098.0 (21.4) | 461.0 (31.3) | |
| Tumor stage | <0.001 | |||||
| Local | 186,400.0 (67.2) | 25,105.0 (56.9) | 22,345.0 (65.5) | 24,895.0 (58.6) | 832.0 (56.6) | |
| Regional | 75,432.0 (27.2) | 15,201.0 (34.4) | 9,972.0 (29.2) | 14,989.0 (35.3) | 527.0 (35.8) | |
| Distant | 13,937.0 (5.0) | 3,531.0 (8.0) | 1,575.0 (4.6) | 2,279.0 (5.4) | 97.0 (6.6) | |
| Unknown | 1,550.0 (0.6) | 312.0 (0.7) | 249.0 (0.7) | 321.0 (0.8) | 15.0 (1.0) | |
| Tumor size, cm | ||||||
| <1.0 | 60,982.0 (22.0) | 6,916.0 (15.7) | 6,664.0 (19.5) | 6,929.0 (16.3) | 257.0 (17.5) | <0.001 |
| 1.0-1.9 | 97,245.0 (35.1) | 13,025.0 (29.5) | 10,645.0 (31.2) | 13,093.0 (30.8) | 435.0 (29.6) | |
| 2.0-2.9 | 51,161.0 (18.5) | 8,783.0 (19.9) | 7,117.0 (20.9) | 8,886.0 (20.9) | 287.0 (19.5) | |
| 3.0-3.9 | 23,423.0 (8.5) | 4,938.0 (11.2) | 3,506.0 (10.3) | 4,564.0 (10.7) | 164.0 (11.2) | |
| ≥4.0 | 36,588.0 (13.2) | 8,773.0 (19.9) | 5,250.0 (15.4) | 7,350.0 (17.3) | 258.0 (17.5) | |
| Unknown | 7,920.0 (2.9) | 1,714.0 (3.9) | 959.0 (2.8) | 1,662.0 (3.9) | 70.0 (4.8) | |
| Tumor grade | <0.001 | |||||
| Well differentiated (I) | 67,563.0 (24.4) | 6,243.0 (14.1) | 6,810.0 (20.0) | 7,938.0 (18.7) | 232.0 (15.8) | |
| Moderately differentiated (II) | 121,582.0 (43.8) | 16,061.0 (36.4) | 14,797.0 (43.3) | 17,594.0 (41.4) | 582.0 (39.6) | |
| Poorly (III)/undifferentiated (IV) | 76,119.0 (27.5) | 19,230.0 (43.6) | 11,046.0 (32.4) | 15,080.0 (35.5) | 574.0 (39.0) | |
| Unknown | 12,055.0 (4.4) | 2,615.0 (5.9) | 1,488.0 (4.4) | 1,872.0 (4.4) | 83.0 (5.6) | |
| Triple-negative status | <0.001 | |||||
| HR+/HER2+ (Luminal B) | 27,904.0 (10.1) | 5,065.0 (11.5) | 4,229.0 (12.4) | 5,270.0 (12.4) | 195.0 (12.3) | |
| HR+/HER2-(Luminal A) | 211,344.0 (76.2) | 27,279.0 (61.8) | 24,571.0 (71.9) | 29,459.0 (69.3) | 990.0 (67.3) | |
| HR-/HER2+ (HER2-enriched) | 10,924.0 (3.9) | 2,603.0 (5.9) | 2,220.0 (6.5) | 2,430.0 (5.7) | 91.0 (6.2) | |
| HR-/HER2-(triple-negative) | 27,147.0 (9.8) | 9,202.0 (20.8) | 3,121.0 (9.1) | 5,325.0 (12.5) | 195.0 (13.3) | |
| Total | 277,319.0 | 44,149.0 | 34,141.0 | 42,484.0 | 1,471.0 | |
P-values were determined by χ2 test. NH, non-Hispanic; HR, hormone receptor; HER2, human epidermal growth factor receptor 2.