Age-adjusted SEER Invasive Breast Cancer Incidence Rates over the BCRAT and WHI time periods. Solid lines show SEER incidence rates of invasive breast cancer for the years used in BCRAT that are available in SEER (1983–1987 for White women and 1992–1996 for Hispanic women), as well as for those years available in SEER that cover the WHI study period (1993–2007). Dotted lines show the mean incidence rate of invasive breast cancer over the time periods used in the BCRAT for White women and Hispanic women, and for SEER 1993–2007 for both NHW and Hispanic women. Mean rates were estimated using age-specific invasive breast cancer incidence rates, among women aged 50 and older, based on 5-year age categories (i.e. 50–54 years of age, 55–59 years of age, 60–64 years of age, etc.) as used in the BCRAT. Rates are based on SEER 9 and 13 registries. All rates are per 100,000 and age adjusted to the 2000 US Standard Population rates among women age 50 and older