Table 1 Descriptive characteristics of Non-Hispanic White and Asian/Pacific Islander women with stages I–III breast cancer in the SEER 18 registries, 1991–2011
Non-Hispanic White women (n = 462,005) | Asian/Pacific Islandera women (n = 44,531) | |
|---|---|---|
Age at index breast cancer | ||
Mean (SD) | 61.2 (13.7) | 56.3 (13.1) |
Median (IQR) | 61 (51–72) | 55 (46–66) |
20–49 years | 102,558 (22.2) | 15,241 (34.2) |
50–64 years | 168,817 (36.5) | 17,111 (38.4) |
65–74 years | 100,839 (21.8) | 7683 (17.3) |
75–85 years | 70,659 (15.3) | 3789 (8.5) |
85+ years | 19,132 (4.1) | 707 (1.6) |
Years of diagnosis | ||
1991–1995 | 57,530 (12.5) | 4646 (10.4) |
1996–2000 | 84,289 (18.2) | 8009 (18.0) |
2001–2005 | 145,993 (31.6) | 12,856 (28.9) |
2006–2011 | 174,193 (37.7) | 19,020 (42.7) |
Birthplace | ||
U.S. | 194,905 (42.2) | 8424 (18.9) |
Non-U.S. | 20,923 (4.5) | 19,957 (44.8) |
Unknown | 246,177 | 16,150 |
Marital status | ||
Single or never married | 47,135 (10.2) | 5372 (12.1) |
Married or domestic partner | 400,184 (86.6) | 38,178 (85.7) |
Unknown | 14,686 | 981 |
AJCC stage | ||
I | 242,188 (52.4) | 21,664 (48.6) |
II | 160,716 (34.8) | 16,855 (37.9) |
III | 59,101 (12.8) | 6012 (13.5) |
Hormone receptor status | ||
ER(+)/PR(+) | 282,720 (61.2) | 26,974 (60.6) |
ER(+)/PR(−) | 50,909 (11.0) | 4623 (10.4) |
ER(−)/PR(+) | 6931 (1.5) | 823 (1.8) |
ER(−)/PR(−) | 71,453 (15.5) | 7668 (17.2) |
Missing | 49,992 | 4443 |
Tumor size | ||
<2 cm | 365,185 (79.0) | 35,248 (79.2) |
≥2 cm | 94,405 (20.4) | 9097 (20.4) |
Missing | 2415 | 186 |
Lymph node status | ||
Negative | 315,405 (68.3) | 29,897 (67.1) |
Positive | 146,516 (31.7) | 14,625 (32.8) |
Missing | 84 | 9 |
Surgery | ||
Radical or total mastectomy | 199,975 (43.3) | 22,558 (50.7) |
Breast-conserving surgery | 223,197 (48.3) | 19,109 (42.9) |
Unspecified surgery | 38,833 | 2864 |
Radiation | ||
No | 213,565 (46.2) | 21,825 (49.0) |
Yes | 235,859 (51.1) | 21,563 (48.4) |
Unknown | 12,581 | 1143 |
Person-years of follow-up | ||
Mean (SD) | 6.8 (4.9) | 6.7 (5.0) |
Median (IQR) | 4 (2–6) | 3 (2–5) |
<2 years | 80,086 (17.3) | 8754 (19.7) |
2–4 years | 79,702 (17.3) | 7831 (17.6) |
4–6 years | 70,179 (15.2) | 6605 (14.8) |
6–8 years | 60,933 (13.2) | 5566 (12.5) |
8–10 years | 54,674 (11.8) | 4700 (10.6) |
10+ years | 116,431 (25.2) | 11,075 (24.9) |
Outcome status | ||
Alive | 352,200 (76.2) | 37,658 (84.6) |
Died (all causes) | 109,805 (23.8) | 6873 (15.4) |
Breast cancer-specific | 46,116 (42.0) | 3661 (53.3) |
Cardiovascular | 25,527 (23.2) | 1173 (17.1) |