Hepatitis C virus infection increases the risk of developing peripheral arterial disease: a 9-year population-based cohort study

J Hepatol. 2015 Mar;62(3):519-25. doi: 10.1016/j.jhep.2014.09.022. Epub 2014 Sep 28.

Abstract

Background & aims: The relationship between hepatitis C virus (HCV) infection and peripheral arterial disease (PAD) development remains unclear.

Methods: Health insurance claims data were used to construct a cohort of HCV-infected patients diagnosed during the period 1998-2011. Patients younger than 20 years and those with history of hepatitis B or PAD were excluded. We selected 7641 HCV-infected patients and 30564 matched controls. The adjusted risk of developing PAD was analyzed using a multivariate Cox hazard model.

Results: The results show that the excess risk of PAD development in HCV-infected patients is 1.43-fold higher (95% CI=1.23-1.67) compared with non-HCV patients. The adjusted risk of PAD development increases with age; compared with the 20-34 year-old patients, the risk is 3.96-fold higher in HCV-infected patients aged 35-49 years, and 11.7-fold higher in those aged 65 years and above. CKD/ESRD has the highest risk for PAD (HR=1.80, 95% CI=1.29-2.53). HCV-infected patients with four comorbidities exhibit a substantially higher risk of developing PAD (HR=9.25, 95% CI=6.35-13.5). Excess risk of developing PAD is observed from the first year of follow-up till the third year.

Conclusion: HCV-infected patients have an independently higher risk of developing PAD. HCV-infected patients with comorbidity have increased risk of developing PAD.

Keywords: Cardiovascular disease; Chronic kidney disease; Comorbidity; Hepatitis; Peripheral arterial disease; Stroke.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Case-Control Studies
  • Cohort Studies
  • Comorbidity
  • Female
  • Hepatitis C / complications*
  • Hepatitis C / epidemiology
  • Humans
  • Male
  • Middle Aged
  • Peripheral Arterial Disease / epidemiology
  • Peripheral Arterial Disease / etiology*
  • Proportional Hazards Models
  • Retrospective Studies
  • Risk Factors
  • Taiwan / epidemiology
  • Young Adult