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Hepatitis C infection and survivals of liver transplant patients in Canada, 1997-2003.

Abstract：

INTRODUCTION:Liver transplantation is an important health and health care issue for Canadians. Very few studies have estimated the survival results among liver transplant patients infected with hepatitis C virus (HCV) in Canada. METHODS:We carried out a retrospective cohort study to analyze 1- to 5-year survival rates among liver transplant patients, using Canadian Organ Replacement Registry data (1997-2003). Patients less than 19 years old were excluded from the study. The patients were categorized according to previous HCV infection status. The HCV-positive and HCV-negative groups were compared in the following characteristics: age group, gender, ethnicity, blood groups, donor type, pretransplantation medical status. Survival curves were plotted by Kaplan-Meier method. Stepwise regression model was applied to control the confounding impact related to gender, age, and HCV infection status. RESULTS:A total of 1842 liver transplant patients were included in the analysis. One-year survival rate for all patients was 85.4%. There were 319 HCV-positive recipients in the exposed group and 813 in the HCV-negative group. The HCV-positive and HCV-negative groups were comparable in age groups, ethnicity, ABO blood group, pretransplantation medical status, and donor organ type. The HCV-positive group had the higher male:female ratio (2.32:1) than the HCV-negative recipients (1.49:1) (Mantel Haenszel (MH) chi2 = 10.0311, P = .0015). There was no significant difference in 1-year survival rate between HCV-positive and HCV-negative groups, but the differences in the 2-year and 5-year survival rates were significant even after adjusting gender factor by stepwise regression analysis (MH chi2 = 4.4203, P = .0355). CONCLUSION:In Canada, the first-year survival rate is about 85.4%, which is comparable with other industrialized countries. The exaggerated survival disadvantage for HCV-positive recipients seems to be middle and long term, not short term.

journal_name

Transplant Proc

journal_title

Transplantation proceedings

authors

Hong Z,Smart G,Dawood M,Kaita K,Wen SW,Gomes J,Wu J

doi

10.1016/j.transproceed.2008.03.089

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

1466-70

issue

eissn

0041-1345

issn

1873-2623

pii

S0041-1345(08)00310-2

journal_volume

pub_type

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Hepatitis C infection and survivals of liver transplant patients in Canada, 1997-2003.