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News

Coffee reduces risk for hepatocellular carcinoma

Coffee consumption reduces the risk for hepatocellular carcinoma, finds the most recent issue of the Clinical Gastroenterology & Hepatology.

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Coffee consumption has been suggested to reduce the risk for hepatocellular carcinoma (HCC).

Dr  Carlo La Vecchia and colleagues performed a meta-analysis of epidemiological studies to provide updated information on how coffee drinking affects HCC risk.

The researchers performed a PubMed/MEDLINE search of the original articles published in English from 1966 through 2012, on case-control or cohort studies that associated coffee consumption with liver cancer or HCC.

The researchers calculated the summary relative risk for any, low, and high consumption of coffee vs no consumption.

The cut-off point for low vs high consumption was set to 3 cups per day in 9 studies, and 1 cup per day in 5 studies.

The relative risk was 0.80 for an increment of 1 cup of coffee per day
Clinical Gastroenterology & Hepatology

The team noted that the summary relative risk for any coffee consumption vs no consumption was 0.60 from 16 studies, comprising a total of 3153 HCC cases.

The researchers found that the relative risks were 0.56 from 8 case-control studies, and 0.64 from 8 cohort studies.

Compared with no coffee consumption, the team found that the summary relative risk was 0.72 for low consumption, and 0.44 for high consumption.

The summary relative risk was 0.80 for an increment of 1 cup of coffee per day.

The team found that the inverse relationship between coffee, and HCC risk was consistent regardless of the subjects’ sex, alcohol drinking, or history of hepatitis or liver disease.

Dr La Vecchia's team commented, "From this meta-analysis, the risk of HCC is reduced by 40% for any coffee consumption vs no consumption."

"The inverse association might partly or largely exist because patients with liver and digestive diseases reduce their coffee intake."

"However, coffee has been shown to affect liver enzymes and development of cirrhosis, and therefore could protect against liver carcinogenesis."

Clin Gastroenterol Hepatol 2013: 11(11): 1413-1421.e1
25 October 2013

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