Why the study?
Are there racial differences in long-term survival among hemodialysis patients after coronary artery bypass grafting?
Are there racial differences in long-term survival among hemodialysis patients after coronary artery bypass grafting?
White hemodialysis patients undergoing first-time isolated CABG have significantly worse 5-year survival compared to black hemodialysis patients.
Racial survival disparity after CABG in hemodialysis patients should not yet change practice; leaves open whether it reflects biology or unmeasured confounders.
The aim of this study was to examine racial differences in long-term survival among hemodialysis patients after coronary artery bypass grafting (CABG). To our knowledge this has not been previously addressed in the literature. Black and white hemodialysis patients undergoing first-time, isolated CABG procedures between 1992 and 2011 were compared. Survival probabilities were computed using the Kaplan-Meier product-limit method and stratified by race. Hazard ratios (HR) and 95% confidence intervals (CI) were computed using a Cox regression model. A total of 207 (2%) patients were on hemodialysis at the time of CABG. White (n = 80) hemodialysis patients had significantly decreased 5-year survival compared with black (n = 127) patients (adjusted HR = 1.9, 95% CI = 1.2-2.8). Our finding provides useful outcome information for surgeons, primary care providers, and their patients.
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Efird et al. (2013) studied this question.
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