In the United States, women are most likely to get breast cancer than any other type of cancer. A little less than 1 in 8 women will get invasive breast cancer at some point in their lives (12%). The most up-to-date rates of breast cancer in the US from the American Cancer Society are for 2010: • About 207,090 women will be told they have invasive breast cancer. • About 54,010 new cases of carcinoma in situ (CIS) will be found. CIS is the earliest type of breast cancer and does not spread to other parts of the body. • Breast cancer will kill about 39,840 women. Incidence rates for female breast cancer went down by about 2% per year from 1998 to 2007. They had been going up for more than 20 years. Women aged 50 and up were the only ones who saw this drop. It may be at least partly because fewer women used hormone therapy after menopause after the Women's Health Initiative results came out in 2002. Hormone therapy was linked to a higher risk of breast cancer and heart disease in this study. Women die from breast cancer second only to lung cancer, which is the most common type of cancer in women. About 1 in 35 women will die from breast cancer, which is about 3% of the time. Since around 1990, the death rate from breast cancer has been going down, and the drop is bigger in women younger than 50. It is thought that these drops are due to earlier detection through screening, more people knowing about the problem, and better treatment. To date, more than 2.5 million people in the United States have lived through breast cancer. (This includes women who are still getting treatment and women who are done with treatment.)