Trends in use of contralateral prophylactic mastectomy by racial/ethnic group and ER/PR status among patients with breast cancer: A SEER population-based study

CPM usage was lower not only in non-Hispanic Blacks, but also in non-Hispanic API and Hispanic patients compared to non-Hispanic White patients. CPM usage tended to be higher for ER+/PR+ tumors, but the results varied when different denominators (all mastectomies vs. all breast surgeries) were used.