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Trends in mortality from chronic liver disease
Ugo Fedeli1, Francesco Avossa1, Stefano Guzzinati2
1Epidemiological Department, Veneto Region, Italy.
Annals of Epidemiology
|May 28, 2014
Summary
Liver cirrhosis mortality declined significantly, but chronic liver disease deaths, including viral hepatitis and liver cancer, show a smaller reduction. Comprehensive data analysis is crucial for accurate public health insights.
Area of Science:
- Hepatology
- Public Health
- Epidemiology
Background:
- Liver cirrhosis mortality has decreased globally.
- However, cirrhosis deaths represent only a portion of overall chronic liver disease mortality.
- This highlights potential underestimation of disease burden in standard statistics.
Purpose of the Study:
- To analyze trends in mortality from liver cirrhosis, liver cancer, and viral hepatitis.
- To assess the impact of birth cohort effects on liver disease mortality.
- To determine the proportion of liver disease deaths attributable to viral or alcoholic etiologies.
Main Methods:
- Extracted mortality records for liver cirrhosis, liver cancer, and viral hepatitis (1995-2010) in the Veneto Region.
- Employed Poisson regression models to identify birth cohort effects.
- Utilized multiple causes of death analysis (2008-2010) to ascertain etiology.
Main Results:
- Liver cirrhosis accounted for one-third of all liver disease deaths, a smaller fraction for viral causes and the elderly.
- Age-standardized mortality rates declined by 50% for cirrhosis and 25-30% for all liver diseases.
- A significant decline in mortality was observed in individuals born after the early 1920s.
Conclusions:
- Standard mortality statistics for chronic liver disease may underestimate the true burden by excluding viral hepatitis and liver cancer.
- The observed decline in mortality is less pronounced when considering all liver diseases.
- Analysis of multiple causes of death data is recommended for a more complete understanding of liver disease mortality.
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