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Coffee & Health
Cancer

Coffee intake and oral-oesophageal cancer: follow-up of 389,624 Norwegian men and women 40 – 45 years

A Tverdal et al, (2011)
British Journal of Cancer, published online ahead of print
June 6, 2011

BACKGROUND:

The evidence on the relationship between coffee intake and cancer of the oral cavity and oesophagus is conflicting and few follow-up studies have been done.

METHODS:

A total of 389,624 men and women 40–45 years who participated in a national survey programme were followed with respect to cancer for an average of 14.4 years by linkage to the Cancer Registry of Norway. Coffee consumption at baseline was reported as a categorical variable (0 or o1 cup, 1–4, 5–8, 9+ cups per day).

RESULTS:

Altogether 450 squamous oral or oesophageal cancers were registered during follow-up. The adjusted hazard ratios with 1–4 cups per day as reference were 1.01 (95% confidence interval: 0.70, 1.47), 1.16 (0.93, 1.45) and 0.96 (0.71, 1.14) for 0 or o1 cup, 5–8 and 9+ cups per day, respectively. Stratification by sex, type of coffee, smoking status and dividing the end point into oral and oesophageal cancers gave heterogeneous and non-significant estimates.

CONCLUSION:

This study does not support an inverse relationship between coffee intake and incidence of cancer in the mouth or oesophagus, but cannot exclude a weak inverse relationship.

British Journal of Cancer advance online publication, 31 May 2011; doi:10.1038/bjc.2011.192 www.bjcancer.com

© 2011 Cancer Research UK

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