Black women with breast cancer in the United States had significantly different survival rates based on hospital type. These findings from pooled data of case-control and prospective cohort studies were published in JCO Oncology Practice.
Data from 5 case-control and prospective cohort studies within the California Breast Cancer Survivorship Consortium were pooled to include 9701 patients with breast cancer diagnosed between 1993 and 2007. Hospital type (National Cancer Institute-designated cancer centers, American College of Surgeons (ACS) cancer programs, and non-ACS affiliated centers) and socioeconomic and demographic factors were studied for their effect on survivorship.
The participating patients were majority non-Latina White (48%), followed by Latina (19%), Black (18%), Asian (14%), and other (1%).
The breast cancer–specific survival for Black women was lower when compared with non-Latina White women, after correcting for personal, clinical, and institutional characteristics their mortality hazard ratio (HR) was 1.25 (95% CI, 1.04-1.49).
The survival of Black women was highest at ACS-affiliated hospitals for both overall survival (HR, 0.76; 95% CI, 0.64-0.90) and breast cancer–specific survival (HR, 0.67; 95% CI, 0.55-0.83) after adjusting for all covariates.
This analysis did not include information on HER2 status or specific treatment regimens which may have significantly affected patient survival rates.
The study authors concluded that Black women had significantly decreased mortality when treated at a hospital with an ACS program and that more research is needed to determine which specific aspects of care at these hospitals improves survivorship, so they may be implemented at other centers.
Shariff-Marco S, Ellis L, Yang J, et al. Hospital characteristics and breast cancer survival in the California breast cancer survivorship consortium. JCO Oncol Pract. 2020;16(6):e517-e528. doi: 10.1200/OP.20.00064