Table 2.
Stage Composition of Breast Cancer Among Women Aged 40–74 Years, USCS 2006– 2014
| Variable | 40–49 | 50–74 | ||
|---|---|---|---|---|
| 2006–2009 | 2011–2014 | 2006–2009 | 2011–2014 | |
| Stage of breast cancer, % | ||||
| In situ | 24.8 | 25.1 | 21.6 | 21.1 |
| Localized | 43.1 | 44 | 50.6 | 52.8 |
| Regional | 28.5 | 27.1 | 23.5 | 21.5 |
| Distant | 3.6 | 3.8 | 4.3 | 4.6 |
| Hispanic, % | ||||
| In situ | 23.1 | 23.8 | 20.5 | 21 |
| Localized | 40.5 | 41.3 | 47.8 | 49.7 |
| Regional | 32.2 | 30.7 | 27 | 24.6 |
| Distant | 4.2 | 4.2 | 4.6 | 4.7 |
| Non-Hispanic white, % | ||||
| In situ | 25.6 | 25.4 | 21.5 | 20.6 |
| Localized | 44 | 45.3 | 51.8 | 54.3 |
| Regional | 27.3 | 26 | 22.7 | 20.7 |
| Distant | 3.1 | 3.3 | 4 | 4.3 |
| Non-Hispanic black, % | ||||
| In situ | 20.3 | 22.3 | 21.8 | 22.7 |
| Localized | 39.6 | 39.9 | 43.2 | 45.7 |
| Regional | 34.1 | 31.5 | 28.3 | 25 |
| Distant | 6.1 | 6.3 | 6.7 | 6.6 |
| Asian or Pacific Islander, % | ||||
| In situ | 28.3 | 28.3 | 24.9 | 25.2 |
| Localized | 44.5 | 44.7 | 49.2 | 50.5 |
| Regional | 24.5 | 24.3 | 22.1 | 20.5 |
| Distant | 2.7 | 2.7 | 3.8 | 3.7 |
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. When stage composition of breast cancer was calculated, number of cases in each stage was age-adjusted to the 2000 U.S. Standard Population. Chi-square test was used to compare stage composition between 2006–2009 and 2011–2014, and p-value for each test was >0.05.