CLINICAL STUDY: CORONARY ARTERY DISEASE
Race and the decision to refer for coronary revascularization
The effect of physician awareness of patient ethnicity
Sande Okelo, MD ,
Anne L. Taylor, MD*,
Jackson T. Wright, Jr, MD, PhD*,
Nahida Gordon, PhD ,
Geetha Mohan, MD* and
Edward Lesnefsky, MD, FACC*
* Cleveland Veterans Affairs Medical Center, School of Medicine, Cleveland, Ohio, USA
Geriatric Research Education and Clinical Center, School of Medicine, Cleveland, Ohio, USA
Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
Manuscript received January 9, 1998;
revised manuscript received April 23, 2001,
accepted May 15, 2001.
Reprint requests and correspondence: Dr. Anne L. Taylor, Professor of Medicine, Division of Cardiology, University of Minnesota, C694 Mayo Memorial Building, Mayo Mail Code 293, 420 Delaware Street SE, Minneapolis, Minnesota 55455
taylo135{at}umn.edu
OBJECTIVES
We sought to assess whether there were differences, relative to racial ethnicity, in coronary revascularization recommendations made by a panel that had no knowledge of the patients’ ethnicity.
BACKGROUND
Coronary revascularization is employed less frequently in African American than in white patients. It is unclear whether this utilization pattern is driven by clinical differences between the two populations or by nonclinical factors.
METHODS
Data were reviewed from 938 (26.5% African American, 73.5% white) consecutive cardiac catheterizations done between 1993 and 1995. Revascularization recommendations were made by cardiologists and cardiothoracic surgeons provided with the patients’ clinical and angiographic data, but without knowledge of their ethnicity. Revascularization recommendations were compared between African American and white patients and correlated with clinical characteristics.
RESULTS
No difference was noted in the percentage of African American and white patients recommended for revascularization, without reference to whether the recommendation was for percutaneous transluminal coronary angioplasty (PTCA) or for coronary artery bypass graft surgery (CABG) 40 vs. 46%, p = NS). African Americans were recommended more frequently for PTCA (22 vs. 18%, p = NS), whereas CABG was recommended for more white patients (28 vs. 18%, p = 0.002). Significantly fewer African Americans had disease in the left main or left anterior descending coronary artery or in multiple arteries. After adjusting for age, co-morbidity, left ventricular dysfunction and the extent of coronary disease, African Americans were more likely to have a recommendation for PTCA (odds ratio [OR] 1.42, 95% confidence interval [CI] 0.96 to 2.11, p = 0.08) and less likely to have a recommendation for CABG (OR 0.59, 95% CI 0.37 to 0.94, p = 0.02).
CONCLUSIONS
This study suggests that when only clinical factors are considered, the rates of recommendations for revascularization will be similar for white and African American patients; but the type of revascularization procedure may differ by ethnicity and may depend, in part, on clinical factors.
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Abbreviations and Acronyms
| | CABG | = coronary artery bypass graft surgery | | CAD | = coronary artery disease | | CI | = confidence interval | | LAD | = left anterior descending coronary artery | | LMCA | = left main coronary artery | | LV | = left ventricle or ventricular | | OR | = odds ratio | | PTCA | = percutaneous transluminal coronary angioplasty |
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