Italian researchers carried out a meta-analysis of 10 published studies on the relation between coffee drinking and risk of hepatocelluar carcinoma, a common type of liver cancer. The studies included participants in Greece, Italy and Japan, some with liver cancer and many without.
They found a 41 % reduction in the risk for liver cancer among coffee drinkers compared with those who never drank coffee. The researchers said that the studies from Europe and Japan showed the same relationship between coffee drinking and reduced liver cancer risk suggested consistency of these results. However, they cautioned that it is difficult to "derive a causal inference on the basis of observational studies alone."
The study "Coffee drinking and hepatocellular carcinoma risk: A meta-analysis" is published in the journal Hepatology, Volume 46, Issue 2 (August 2007), pp 430-435. Read the abstract.
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