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Int J Cancer. 1992 Jul 30;51(6):898-902.

Alcoholism and liver cirrhosis in the etiology of primary liver cancer.

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Cancer Epidemiology Unit, University Hospital, Uppsala, Sweden.


The aim of this study was to determine the risk of developing primary liver cancer in patients with a diagnosis of alcoholism, liver cirrhosis, or both. Three population-based, mutually exclusive cohorts were defined on the basis of hospital discharge diagnosis between 1965 and 1983. Complete follow-up through 1984--excluding the first year of follow-up--showed that among 8,517 patients with a diagnosis of alcoholism, 13 cancers occurred, vs. 4.2 expected (standardized incidence ratio (SIR) = 3.1; 95% confidence interval (CI) = 1.6 to 5.3); among 3,589 patients with liver cirrhosis, 59 cancers occurred, vs. 1.7 expected (SIR = 35.1; 95% CI = 26.7 to 45.3), and among 836 patients with both diagnoses, 11 cancers occurred, vs. 0.3 expected (SIR = 34.3; 95% CI = 17.1 to 61.3). Thus, alcoholism alone entailed a moderately increased risk and alcoholism with liver cirrhosis did not increase the high relative risk for liver cancer more than cirrhosis alone. We conclude that alcohol intake may be a liver carcinogen only by being causally involved in the development of cirrhosis; and further, that the risk of developing liver cancer following cirrhosis in this population is similar to or higher than that after chronic hepatitis-B-virus infection in other Western countries.

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