1. Following the organ supply: assessing the benefit of inter-DSA travel in liver transplantation.
- Author
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Dzebisashvili N, Massie AB, Lentine KL, Schnitzler MA, Segev D, Tuttle-Newhall J, Gentry S, Freeman R, and Axelrod DA
- Subjects
- ABO Blood-Group System, Adult, Black or African American, Female, Hispanic or Latino, Humans, Insurance, Health economics, Kaplan-Meier Estimate, Linear Models, Male, Matched-Pair Analysis, Middle Aged, Multivariate Analysis, Proportional Hazards Models, Registries, Retrospective Studies, Risk Assessment, Risk Factors, Time Factors, Tissue and Organ Harvesting, Treatment Outcome, United States, White People, Young Adult, Health Services Accessibility economics, Healthcare Disparities economics, Healthcare Disparities ethnology, Liver Transplantation adverse effects, Liver Transplantation economics, Liver Transplantation ethnology, Liver Transplantation mortality, Residence Characteristics, Socioeconomic Factors, Tissue Donors supply & distribution, Travel economics, Waiting Lists mortality
- Abstract
Background: Disparity in access to liver transplantation (LT) in the United States persists despite directives from the federal government to reduce geographic variation. We assessed the impact of socioeconomic status (SES) and traveling to alternative donation service areas (DSAs) on patient survival., Methods: A prospective cohort study integrating transplant registry and U.S. Census data was analyzed using multivariate linear Cox proportional hazards models. A separate matched-pairs analysis was used to assess the benefit of traveling on patient survival and transplantation rate., Results: High SES is associated with increased access to LT (adjusted hazard ratio [aHR], 1.05; 95% confidence interval [95% CI], 1.01-1.08) and reduced mortality after waitlisting (aHR [95% CI], 0.88 [0.85-0.93]). Increased access is mediated, in part, through inter-DSA travel. Travel was associated with high SES, white race, blood group O, private insurance, and residence in regions 1, 5, and 11. Transplant candidates in the highest SES quartile were approximately 70% more likely to travel (aHR [95% CI], 1.67 [1.43-1.97]) than those in the lowest SES quartile. Compared with matched control patients, travelers were 74% more likely to be transplanted (aHR [95% CI], 1.74 [1.56-1.94]) and 20% less likely to die after listing (aHR [95% CI], 0.79 [0.69-0.92])., Conclusion: High SES and inter-DSA travel are strongly associated with increased LT access and reduced mortality. Travelers are more likely to be sociodemographically advantaged and privately insured and to live in regions with reduced access to deceased-donor organs.
- Published
- 2013
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