Table 1.
Age-Adjusted Incidence Rate of Breast Cancer by Stage Among Women Aged 40–74 Years, USCS 2006–2009 and 2011–2014
| Incidence rate, per 100,000 (95% CI) | RR (95% CI) | ||
|---|---|---|---|
| Variable | 2006–2009 | 2011–2014 | |
| Among women aged 40–49 years | |||
| All cases | 202.8 (201.9, 203.7) | 203.4 (202.4, 204.4) | 1.00 (1.00, 1.01) |
| All cases by race/ethnicity | |||
| Hispanic | 152.9 (150.6, 155.1) | 150.1 (148.1, 152.2) | 0.98 (0.96, 1.00) |
| Non-Hispanic white | 213.2 (212.1, 214.4) | 215.5 (214.2, 216.7) | 1.01 (1.00, 1.02) |
| Non-Hispanic black | 195.7 (193.2, 198.2) | 201.8 (199.2, 204.4) | 1.03 (1.01, 1.05) |
| Asian or Pacific Islander | 181.9 (178.1, 185.7) | 195.1 (191.5, 198.8) | 1.07 (1.04, 1.10) |
| Invasive breast cancer | 153.2 (152.4, 154) | 153.1 (152.2, 153.9) | 1.00 (0.99, 1.01) |
| Invasive breast cancer by race/ethnicity | |||
| Hispanic | 118.5 (116.5, 120.4) | 115.2 (113.4, 117) | 0.97 (0.95, 0.99) |
| Non-Hispanic white | 159.4 (158.4, 160.4) | 161.2 (160.2, 162.3) | 1.01 (1.00, 1.02) |
| Non-Hispanic black | 156.8 (154.5, 159.1) | 157.5 (155.3, 159.8) | 1.00 (0.98, 1.03) |
| Asian or Pacific Islander | 131.2 (128, 134.5) | 140.7 (137.6, 143.8) | 1.07 (1.04, 1.11) |
| Stage of breast cancer | |||
| In situ | 49.6 (49.1, 50) | 50.3 (49.9, 50.8) | 1.02 (1.00, 1.03) |
| Localized | 86 (85.4, 86.6) | 88.3 (87.6, 88.9) | 1.03 (1.02, 1.04) |
| Regional | 56.8 (56.3, 57.3) | 54.4 (54, 54.9) | 0.96 (0.95, 0.97) |
| Distant | 7.2 (7, 7.3) | 7.6 (7.4, 7.8) | 1.06 (1.02, 1.10) |
| Among women aged 50–74 years | |||
| All cases | 395.8 (394.8, 396.8) | 396.8 (395.9, 397.8) | 1.00 (1.00, 1.01) |
| All cases by race/ethnicity | |||
| Hispanic | 297 (294, 300) | 299.4 (296.8, 302) | 1.01 (0.99, 1.02) |
| Non-Hispanic white | 411.9 (410.7, 413) | 410.3 (409.2, 411.4) | 1.00 (0.99, 1.00) |
| Non-Hispanic black | 385.9 (383, 389) | 407.6 (404.8, 410.4) | 1.06 (1.05, 1.07) |
| Asian or Pacific Islander | 281.3 (277.3, 285.4) | 305.9 (302.2, 309.6) | 1.09 (1.07, 1.11) |
| Invasive breast cancer | 312 (311.1, 312.8) | 314.5 (313.6, 315.3) | 1.01 (1.00, 1.01) |
| Invasive breast cancer by race/ethnicity | |||
| Hispanic | 237.6 (234.9, 240.3) | 237.9 (235.6, 240.3) | 1.00 (0.99, 1.02) |
| Non-Hispanic white | 324.8 (323.7, 325.8) | 326.6 (325.7, 327.6) | 1.01 (1.00, 1.01) |
| Non-Hispanic black | 303.5 (300.9, 306.2) | 316.5 (314, 319) | 1.04 (1.03, 1.06) |
| Asian or Pacific Islander | 212.6 (209.1, 216.1) | 229.8 (226.6, 233) | 1.08 (1.06, 1.10) |
| Stage of breast cancer | |||
| In situ | 83.8 (83.4, 84.3) | 82.4 (82, 82.8) | 0.98 (0.98, 0.99) |
| Localized | 196.5 (195.8, 197.2) | 206.6 (205.9, 207.3) | 1.05 (1.05, 1.06) |
| Regional | 91.5 (91.1, 92) | 84.1 (83.7, 84.5) | 0.92 (0.91, 0.93) |
| Distant | 16.9 (16.7, 17.2) | 18.0 (17.8, 18.2) | 1.06 (1.05, 1.08) |
Notes: Data were from U.S. Cancer Statistics (USCS), the combined data from the Centers for Disease Control and Prevention (CDC’s) National Program for Cancer Registries (NPCR) and the National Cancer Institute’s (NCI’s) Surveillance, Epidemiology, and End Results (SEER) Program. Boldface indicates statistical significance (p<0.05). Rates are per 1,000,000 and age-adjusted to the 2000 U.S. Standard Population. CIs are 95% for rates (Tiwari method). Differences in age-adjusted 4-year average annual rates between 2011–2014 and 2006–2009 were evaluated using rate ratio (RR) and the corresponding 95% CI. Each RR was derived from a stratified model in a specified population (different age groups, races, or stages).