Breast Cancer Cases/Deaths Per Year (U.S. and World)
Breast cancer is the second leading cause of cancer deaths in women today (after lung cancer) and is the most common cancer among women, excluding nonmelanoma skin cancers. According to the American Cancer Society, about 1.3 million women will be diagnosed with breast cancer annualluy worldwide about 465,000 will die from the disease. Breast cancer death rates have been dropping steadily since 1990, according to the Society, because of earlier detection and better treatments. About 40,910 breast cancer deaths are expected in 2007.
According to the American Cancer Society, in general, breast cancer rates have risen about 30% in the past 25 years in western countries, due in part to increased screening which detects the cancer in earlier stages. In the United States, though, breast cancer rates decreased by 10% between 2000-2004, due in part to a reduction in the use of hormone replacement therapy. Although breast cancer rates are rising in many western countries, deaths from the disease have decreased in some countries as a result of improved screening and treatment.
The lifetime probability of developing breast cancer in developed countries is about 4.8%, according to the American Cancer Society (the probability is about 13% for any type of cancer). In developing countries, the lifetime probability of developing breast cancer is about 1.8%.
Breast Cancer Worldwide | ||
| Breast (All ages) | Incidence | Deaths |
| China Zimbabwe India Japan Brazil Singapore Italy Switzerland Australia Canada Netherlands UK Sweden Denmark France United States | 18.7 | 5.5 |
| Note: numbers are per 100,000.Source: J. Ferlay, F. Bray, P. Pisani and D.M. Parkin. GLOBOCAN 2002. Cancer Incidence, Mortality and Prevalence Worldwide. IARC CancerBase No. 5, version 2.0. IARCPress, Lyon, 2004. |
Incidence By Age
This risk model is based on population averages. Each woman's breast cancer risk may be higher or lower, depending upon a several factors, including family history, genetics, age of menstruation, and other factors that have not yet been identified.
Probability of Developing Breast Cancer Within the Next 10 years | |
| By age 20 By age 30 By age 40 By age 50 By age 60 By age 70 Lifetime | 1 out of 1,985 1 out of 229 1 out of 68 1 out of 37 1 out of 26 1 out of 24 1 out of 8 |
| Source: Among those cancer free at age interval. Based on cases diagnosed 2000-2002. "1 in" are approximates. Source: American Cancer Society Breast Cancer Facts & Figures, 2005-2006. |
While breast cancer is less common at a young age (i.e., in their thirties), younger women tend to have more aggressive breast cancers than older women, which may explain why survival rates are lower among younger women.
Five Year Survival Rate By Age | |
| Younger than 45 Ages 45-64 Ages 65 and older | 81% 85% 86% |
| Source: American Cancer Society |
Incidence By Ethnic Group
All women are at risk for developing breast cancer. The older a woman is, the greater her chances of developing breast cancer. Approximately 77% of breast cancer cases occur in women over 50 years of age.
According to the Surveillance, Epidemiology, and End Results (SEER) Program of the National Cancer Institute:
- White, Hawaiian, and African-American women have the highest incidence of invasive breast cancer in the United States (approximately four times higher than the lowest group).
- Korean, American Indian, and Vietnamese women have the lowest incidence of invasive breast cancer in the United States.
- African-American have the highest death rate from breast cancer and are more likely to be diagnosed with a later stage of breast cancer than White women.
- In the age groups, 30-54 and 55-69 years, African-American women have the highest death rate from breast cancer, followed by Hawaiian women, and white non-Hispanic women. However, in the 70 year old age group, the death rate from breast cancer for white women is higher than for African –American.
Incidence Rates by Race | |
| | |
| All Races White Black Asian/Pacific Islander American Indian/Alaska Native Hispanic | 127.8 per 100,000 women 132.5 per 100,000 women 118.3 per 100,000 women 89.0 per 100,000 women 69.8 per 100,000 women 89.3 per 100,000 women |
| Source: National Cancer Institute, SEER Cancer Statistics Review, 2007. Statistics based on data, 2000-2004. See www.cancer.gov for more information. |
Death Rates by Race | |
| | |
| All Races White Black Asian/Pacific Islander American Indian/Alaska Native Hispanic | 25.5 per 100,000 women 25.0 per 100,000 women 33.8 per 100,000 women 12.6 per 100,000 women 16.1 per 100,000 women 16.1 per 100,000 women |
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