Key clinical point: The risk for breast cancer-specific mortality (BCSM) remains high beyond 5 years. The BCSM rate is significantly higher in hormone receptor (HR)-positive vs. HR-negative women.
Major finding: The overall BCSM rate was 14.9%. Of all BCSM, 54.2% of deaths occurred after 5 years and were significantly higher in HR-positive vs. HR-negative patients ( P less than .001). Among patients with HR-positive and HR-negative breast cancer, independent risk factors for BCSM conditional on having survived 5 years were tumor size, nodal status, age, and year of diagnosis. Among patients with HR-positive status, tumor grade, marital status, and race were also independently associated with the risk for BCSM.
Study details: An observational study of 202,080 women with breast cancer with known HR status diagnosed between 1990 and 2005.
Disclosures: The study did not receive any funding. Some authors received research funding and/or advisory/consulting fees from various sources.
Source: Leone JP. Breast Cancer Res Treat. 2021 Apr 24. doi: 10.1007/s10549-021-06233-4.