Data & Statistics

Breast Cancer in Hawaiʻi

• Breast cancer is the most common cancer diagnosed in women in Hawai1i.
• Annually, an average of 1,233 women are diagnosed with invasive breast cancer in Hawai1i while another 308 are diagnosed with in situ breast cancer, or very early stage tumors that have not invaded surrounding tissue.
• An average of 155 women die of breast cancer each year in Hawai1i.
• Seventy-two percent of breast cancers are diagnosed in women of age 55 and older.
• Invasive breast cancer incidence rates in Hawai1i increased nearly 1.7% per year over the past 10 years.
• Invasive breast cancer mortality rates declined approximately 1.0% per year over the past decade.
• Invasive breast cancer incidence in Hawai1i (139.6 per 100,000) was higher than the U.S. overall (126.9 per 100,000) in 2014-2018.
• Hawai1i has among the lowest rates of breast cancer mortality in the country (15.8 per 100,000). This compares to 20.1 per 100,000 for the U.S. overall in 2014-2018.
• Breast cancer incidence is higher among Japanese and Native Hawaiian women compared to Chinese, Filipino, White, other Asian, and women of other race/ethnic groups. Other Asian women had lower incidence than Native Hawaiian, Japanese, White, and women of other race/ethnic groups.
• Native Hawaiian women had higher mortality than Chinese, Filipino, Japanese, White, and other Asian women.
• Most breast cancers (76%) are diagnosed at early stages (in situ or localized); 22% are diagnosed at advanced stages.
• The proportion of breast cancers diagnosed at advanced stages ranged from 17% for Japanese women to 33% for women of other race/ethnic groups.