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Published on: December 15, 2023
Association of hepatitis C virus infection status and genotype with kidney disease risk: A population-based
Yi-Chia Chen1, Hung-Wei Wang2, Yun-Ting Huang3
1Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan.
Insights
Hepatitis C virus (HCV) infection, both chronic and resolved, increases kidney disease risk. HCV genotype 1 is particularly linked to a higher risk compared to other genotypes.
Area of Science:
- Nephrology
- Hepatology
- Infectious Diseases
Background:
- Kidney disease risk in resolved hepatitis C virus (HCV) infection is unclear.
- The influence of specific HCV genotypes on kidney disease risk requires further investigation.
Purpose of the Study:
- To examine the association between HCV infection status (chronic vs. resolved) and kidney disease risk.
- To investigate the impact of different HCV genotypes on kidney disease prevalence.
Main Methods:
- A population-based cross-sectional study using US National Health and Nutrition Examination Survey data (1999-2018).
- HCV infection defined by seropositivity and RNA detection; kidney disease by estimated GFR and albuminuria.
- HCV genotypes categorized into 1, 2, and others.
Main Results:
- Individuals with resolved (14.8%) or chronic (20.1%) HCV infection had higher kidney disease prevalence than those without HCV (uninfected: 14.8%).
- Adjusted analyses revealed increased kidney disease risk for both resolved (aOR: 1.40) and chronic (aOR: 1.26) HCV infection.
- HCV genotype 1 infection showed a significantly higher kidney disease risk (aOR: 1.41) compared to no HCV infection, and a 2-fold higher risk (aOR: 2.20) compared to non-genotype 1 HCV.
Conclusions:
- Both resolved and chronic hepatitis C virus infection are linked to elevated kidney disease risk.
- Hepatitis C virus genotype 1 infection poses a particularly significant risk for kidney disease development.
Background:
Whether there is difference in kidney disease risk between chronic hepatitis C virus (HCV) infection and resolved HCV infection remains inconclusive. Additionally, the impact of different HCV genotypes on kidney disease risk is relatively unknown. Accordingly, we conducted a population-based cross-sectional study to investigate the association of HCV infection status and genotype on kidney disease risk.
Methods:
The study population were adult participants of 1999-2018 National Health and Nutrition Examination Survey in the United States. Chronic and resolved infection were defined as HCV seropositivity with and without detectable HCV RNA, respectively. HCV genotypes were classified into genotype 1, genotype 2, and other genotypes. Prevalent estimated glomerular filtration rate < 60 ml/min/1.73 m2 or urinary albumin creatinine ratio ≥ 30 mg/g was defined as kidney disease.
Results:
The average age of study population (n = 44,998) was 46.7±17.0 years with 49.8% being males. Compared with individuals without HCV infection (n = 44,157), those with resolved (n = 255) or chronic HCV infection (n = 586) had higher prevalence of kidney disease: 14.8%, 23.5%, and 20.1%, respectively (p<0.001). After adjusting for potential confounders, we found that both resolved (adjusted OR: 1.40, 95% CI: 1.02-1.93) and chronic HCV infection (adjusted OR: 1.26, 95% CI: 1.01-1.57) correlated to increased kidney disease risk compared with no HCV infection. Additionally, individuals with HCV genotype 1 (adjusted OR: 1.41, 95% CI: 1.09-1.82) but not genotype 2 or other genotypes had greater kidney disease risk compared with no HCV infection. Furthermore, we observed that genotype 1 had 2-fold higher kidney disease risk (adjusted OR: 2.20, 95% CI: 1.07-4.53) compared with non-genotype 1 HCV infection.
Conclusion:
Both resolved and chronic HCV infection, particularly genotype 1, were associated with higher kidney disease risk.
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