Comparative risk of liver-related mortality from chronic hepatitis B versus chronic hepatitis C virus infection

Oluwaseun Falade-Nwulia1, Eric C Seaberg, Charles R Rinaldo

  • 1Division of Infectious Diseases, Johns Hopkins University, Baltimore, 21287, USA. ofalade1@jhmi.edu

Insights

Chronic hepatitis B (CH-B) increases liver-related mortality risk more than chronic hepatitis C (CH-C). This risk is particularly high in HIV-infected men with compromised immune systems.

Area of Science:

  • Hepatology
  • Infectious Diseases
  • Public Health

Background:

  • The comparative risk of liver-related mortality between chronic hepatitis B (CH-B) and chronic hepatitis C (CH-C) is not well-established.
  • This study investigated liver mortality differences between CH-B and CH-C patients within the Multicenter AIDS Cohort Study (MACS).

Purpose of the Study:

  • To compare liver-related mortality rates in men with CH-B versus CH-C.
  • To assess the impact of human immunodeficiency virus type 1 (HIV-1) coinfection on liver mortality risk.

Main Methods:

  • Prospective follow-up of 680 men (337 CH-B, 343 CH-C) in the MACS until March 2010.
  • Mortality data analyzed using Poisson regression, adjusting for confounders and competing risks.
  • Cause of death determined via death registry matching and certificates.

Main Results:

  • Overall liver-related mortality was 7.6 per 1000 person-years.
  • CH-B patients had a significantly higher liver-related mortality rate (9.6 per 1000 PYs) than CH-C patients (5.0 per 1000 PYs).
  • In HIV-1 infected men, CH-B was associated with a 2.2-fold increased risk of liver death (P=.03), with lower CD4 counts (<200) amplifying this risk.

Conclusions:

  • Chronic hepatitis B poses a greater risk of liver disease mortality compared to chronic hepatitis C.
  • HIV-1 coinfection and significant immunosuppression (CD4 <200 cells/mm3) substantially elevate liver mortality risk in CH-B patients.
Abstract

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