Burden of disease related to hepatitis C and hepatitis B in Spain: a methodological challenge of an unfolding health problem
Journal of Viral Hepatitis(2011)
Abstract
Summary. Most previous studies of burden of disease (BoD) in the area of transmissible diseases have assessed the burden of hepatitis C and B without including the end stages of the disease and using an incident approach. We aimed to assess the disability-adjusted life years (DALYs) related to hepatitis C and B in Spain in 2006 taking into account related cirrhosis and liver cancer. A prevalence approach was used to estimate current years lived with disability (YLD) because of viral hepatitis contracted years/decades before. We added years of life lost (YLL) to obtain DALYs. Around 76 000 DALYs were attributed to hepatitis C virus (HCV) and 15 323 to hepatitis B virus (HBV) when calculated without applying social values. Applying the discount rate and age-weighting used in the Global Burden Disease study, the BoD nearly halved. In any case, the burden related to hepatitis C including long-term outputs becomes the leading cause of DALYs among transmissible diseases in Spain. The mortality component (YLL) represents more than 90% of the BoD in both HCV and HBV. The findings emphasize the need to provide good surveillance systems not only concerning acute viral hepatitis, but also chronic and end-stage consequences to allow a reliable assessment of the prevention and public health control policies.
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Key words
burden of disease,cirrhosis,disability-adjusted life years,hepatitis B,hepatitis C,hepatocellular carcinoma
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