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Published on: March 27, 2018
Changes in racial disparities in access to coronary artery bypass grafting surgery between the late 1990s and early
Dana B Mukamel1, David L Weimer, Thomas C Buchmueller
1Center for Health Policy Research, University of California-Irvine, 111 Academy Suite, Irvine, CA 92697, USA. dmukamel@uci.edu
Insights
Racial disparities in coronary artery bypass graft surgery (CABG) care have declined. While access to high-quality surgeons improved for Black patients, gaps in overall surgical access persist.
Area of Science:
- Cardiovascular Surgery
- Health Disparities Research
- Health Services Research
Background:
- Persistent racial disparities exist in US medical care, particularly for African American patients.
- Minority patients have lower utilization rates for coronary artery bypass graft surgery (CABG).
- Black patients often receive care from surgeons with poorer performance records compared to white patients.
Purpose of the Study:
- To examine the persistence of disparities in CABG care, including surgical access and access to high-quality surgeons.
- To investigate potential causes for the observed decline in these disparities in recent years.
Main Methods:
- Retrospective analysis of Medicare inpatient and physician claims and New York State Cardiac Surgery Reports.
- Comparison of CABG access and surgeon quality for white and Black patients between two periods: 1997-1999 and 2001-2003.
- Measurement of patient numbers by race and surgeon quality using risk-adjusted mortality rates.
Main Results:
- Disparities in CABG care between white and Black patients have declined between the late 1990s and early 2000s.
- The decline in disparities appears linked to increased surgical capacity among all surgeons.
- Gaps in overall access to CABG surgery between racial groups still remain.
Conclusions:
- While disparities in CABG care have decreased, they have not been entirely eliminated.
- Increased surgical capacity may have contributed to reduced disparities in accessing high-quality surgeons.
- Further efforts are needed to address remaining barriers to equitable access to CABG surgery.
Background:
Racial disparities in medical care in the United States are pervasive and persistent. Minorities, African American patients in particular, have lower utilization rates for coronary artery bypass graft surgery (CABG) and, compared with white patients, they receive care from surgeons with worse records of performance.
Objectives:
We sought to examine the persistence of disparities in CABG care (overall access to surgery and access to high-quality surgeons) in recent years and the potential causes for declining disparities.
Materials And Methods:
We undertook a retrospective analysis of data comparing access to CABG surgery and access to high-quality cardiac surgeons for white and black patients in the late 1990s and the early 2000s. Data used included the Medicare inpatient and physician part B claims and the New York State Cardiac Surgery Reports. A total of 24,087 Medicare fee-for-service patients undergoing CABG surgery between the years 1997-1999 and 23,048 patients undergoing CABG surgery between the years of 2001-2003 in New York State were studied. We measured the number of patients undergoing surgery by race and quality of surgeons measured by the surgeons' risk-adjusted mortality rates.
Conclusions:
Disparities have declined between the 2 periods. The decline seems to be associated with freed surgical capacity among all surgeons, although other factors may also present barriers, especially in terms of overall access to surgery. Despite the decline in disparities, gaps in care received by white and black patients remain.
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