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Breast cancer is a tumor that starts from breast cells and can spread to distant areas of the body. Other than skin cancer, breast cancer is the most commonly diagnosed cancer in women in the United States, but men can have breast cancer too. The exact causes of breast cancer are unknown; however, there are some known risk factors. Read more about breast cancer.
The age groups shown are:
- All Ages
- Age 50 and Older
- Age Under 50.
Annual Female Breast Cancer Incidence Data
Annual cancer incidence measures can be used to identify trends and patterns of cancer incidence over time. Annual measures are only available at the state level. County level cancer incidence measures are available as five year aggregate data. Advanced options include age group.
Measure Description:
- The Cancer Count is the number of newly diagnosed malignant cancers among females.
- The Crude Rate (Per 100K) is the rate of newly diagnosed malignant cancers among females per 100,000 population of females
- The Age Adjusted Rate (Per 100K) is the age adjusted rate of newly diagnosed malignant cancers among females per 100,000 population of females. Age adjustment to the 2000 Standard US Census is done to allow direct comparison of rates in counties and state with different population age distributions.
5-Year Female Breast Cancer Incidence Data
Five Year incidence measures can be used to identify trends and patterns of cancer incidence over time and in different geographic areas. Five-year aggregate measures are available at the state and county level. Five-year aggregate data is used to reduce the presence of suppressed values due to small numbers; allowing display of data, and stabilization of rates to better evaluate trends. Even with this aggregation some values still need to be suppressed. Advanced options include age group.
Measure Description:
- The Average Annual Count is the average number of newly diagnosed malignant cancers among females per year in the five-year period.
- The Crude Rate (Per 100K) is the rate of newly diagnosed malignant cancers among females per 100,000 Population of females during the five-year period.
- The All Ages AAR (Per 100K) is the age adjusted rate of newly diagnosed malignant cancers among females per 100,000 Population of females during the five-year period. Age adjustment to the 2000 Standard US Census is done to allow direct comparison of rates in counties and state with different population age distributions.
- The Under 50 AAR (Per 100K) is the age adjusted rate of newly diagnosed malignant cancers among females under age 50 per 100,000 Population of females under age 50 during the five year period. Age adjustment to the 2000 Standard US Census is done to allow direct comparison of rates in counties and state with different population age distributions.
- The 50 and Older AAR (Per 100K) is the age adjusted rate of newly diagnosed malignant cancers among females age 50 and older per 100,000 Population of females age 50 and older during the five-year period. Age adjustment to the 2000 Standard US Census is done to allow direct comparison of rates in counties and state with different population age distributions.