Haptoglobin 2-2 Genotype, Patient, and Graft Survival in Renal Transplant Recipients
Eide, Ivar Anders
Christensen, Jeppe Hagstrup
Jenssen, Trond Geir
Svensson, My Hanna Sofia
Appears in the following Collection
Institutt for klinisk medisin
Progress in transplantation. 2017, 27 (4), 386-391,
Background: Cardiovascular disease is the leading cause of death in renal transplant recipients. An association between haptoglobin genotype 2-2 and cardiovascular disease has been found in patients with diabetes mellitus and liver transplant recipients. To date, the role of haptoglobin genotype after renal transplantation has not been studied.
Methods: In this single-center retrospective cohort study of 1975 adult Norwegian transplant recipients, who underwent transplantation between 1999 and 2011, we estimated the risk of all-cause and cardiovascular mortality and overall and death-censored graft loss for patients with haptoglobin genotype 2-2 compared to genotype 2-1 or 1-1, after adjustment for confounders and competing risks.
Results: We found no associations between haptoglobin genotype 2-2 and cardiovascular mortality (subdistributional hazard ratio 1.08, 95% confidence interval 0.78-1.49; P = .63). We also failed to detect any association between haptoglobin 2-2 genotype and all-cause mortality, overall graft loss, and death-censored graft loss. Similar results were found in the subpopulation of transplant recipients with diabetes.
Conclusion: In this large cohort of kidney transplant recipients, we could not demonstrate any association between haptoglobin 2-2 genotype and patient or graft survival after renal transplantation.
This research has been accepted and published in Progress in Transplantation. © 2017 SAGE Publications
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