In the period 2015 to 2019, the most common molecular subtype of breast cancer among women in the United States was hormone receptor positive/human epidermal growth factor receptor 2 negative (HR+/HER2-), accounting for 68 percent of cases. This subtype is usually less aggressive and slower growing than other subtypes. This statistic shows the distribution of breast cancer subtypes among women in the U.S. in 2015-2019.
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American Cancer Society. (January 3, 2022). Distribution of breast cancer cases among women in the U.S. in 2015-2019, by subtype [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/1446713/distribution-of-breast-cancer-cases-women-us-by-subtype/
American Cancer Society. "Distribution of breast cancer cases among women in the U.S. in 2015-2019, by subtype." Chart. January 3, 2022. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/1446713/distribution-of-breast-cancer-cases-women-us-by-subtype/
American Cancer Society. (2022). Distribution of breast cancer cases among women in the U.S. in 2015-2019, by subtype. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/1446713/distribution-of-breast-cancer-cases-women-us-by-subtype/
American Cancer Society. "Distribution of Breast Cancer Cases among Women in The U.S. in 2015-2019, by Subtype." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 3 Jan 2022, /statistics/1446713/distribution-of-breast-cancer-cases-women-us-by-subtype/
American Cancer Society, Distribution of breast cancer cases among women in the U.S. in 2015-2019, by subtype ÌÇÐÄÆƽâ°æ, /statistics/1446713/distribution-of-breast-cancer-cases-women-us-by-subtype/ (last visited August 01, 2026)
Distribution of breast cancer cases among women in the U.S. in 2015-2019, by subtype [Graph], American Cancer Society, January 3, 2022. [Online]. Available: /statistics/1446713/distribution-of-breast-cancer-cases-women-us-by-subtype/
