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Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Hepatology 2015 ; 61 (5): 1495-502 Nephropedia Template TP
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Association of Hepatitis C Virus Infection with Incidence and Progression of Chronic Kidney Disease in a Large Cohort of US Veterans #MMPMID25529816
Hepatology 2015[May]; 61 (5): 1495-502 PMID25529816show ga
Background: An estimated 4 million Americans have been exposed to the hepatitis C virus (HCV) in the US population. The risk of incident and progressive chronic kidney disease and of mortality in patients with normal kidney function infected with HCV is unclear. Methods: In a nationally representative cohort of 100,518 HCV+ and 920,531 HCV- US Veterans with normal baseline estimated glomerular filtration rate(eGFR), we examined the association of HCV infection with: (1)all-cause mortality, (2)incidence of decreased kidney function (defined as eGFR <60 ml/min/1.73m2 and 25% decrease in eGFR), (3)ESRD, and (4)rate of kidney function decline. Associations were examined in naïve and adjusted Cox models (for time-to-event analyses) and logistic regression models (for slopes), with sequential adjustments for important confounders. Propensity-matched cohort analysis was used in sensitivity analyses. Results: The patients? age was 54.5±13.1(mean±SD) years, 22% were black and 92% male, and the baseline eGFR was 88±16 ml/min/1.73m2. In multivariate adjusted models HCV infection was associated with 2.2 fold higher mortality (fully adjusted hazard ratio(aHR), 95%CI: 2.17(2.13?2.21)), 15% higher incidence of decreased kidney function(aHR, 95%CI: 1.15(1.12?1.17)), 22% higher risk of steeper slopes of eGFR (adjusted odds ratio, 95%CI: 1.22(1.19?1.26)) and 98% higher hazard of ESRD (aHR, 95%CI: 1.98 (1.81?2.16)). Quantitatively similar results were found in propensity-matched cohort analyses. Conclusions: HCV infection is associated with higher mortality risk, incidence of decreased kidney function and progressive loss of kidney function. Randomized controlled trials are warranted to determine whether treatment of HCV infection can prevent the development and progression of CKD and improve patient outcomes.