Coffee and tea drinking in relation to the risk of differentiated thyroid carcinoma: results from the European Prospective Investigation into Cancer and Nutrition (EPIC) study.

Eur J Nutr 2019 Dec 10;58(8):3303-3312. Epub 2018 Dec 10.

International Agency for Research on Cancer (IARC), Lyon, France.

Purpose: Coffee and tea constituents have shown several anti-carcinogenic activities in cellular and animal studies, including against thyroid cancer (TC). However, epidemiological evidence is still limited and inconsistent. Therefore, we aimed to investigate this association in a large prospective study.

Methods: The study was conducted in the EPIC (European Prospective Investigation into Cancer and Nutrition) cohort, which included 476,108 adult men and women. Coffee and tea intakes were assessed through validated country-specific dietary questionnaires.

Results: During a mean follow-up of 14 years, 748 first incident differentiated TC cases (including 601 papillary and 109 follicular TC) were identified. Coffee consumption (per 100 mL/day) was not associated either with total differentiated TC risk (HR 1.00, 95% CI 0.97-1.04) or with the risk of TC subtypes. Tea consumption (per 100 mL/day) was not associated with the risk of total differentiated TC (HR 0.98, 95% CI 0.95-1.02) and papillary tumor (HR 0.99, 95% CI 0.95-1.03), whereas an inverse association was found with follicular tumor risk (HR 0.90, 95% CI 0.81-0.99), but this association was based on a sub-analysis with a small number of cancer cases.

Conclusions: In this large prospective study, coffee and tea consumptions were not associated with TC risk.

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http://dx.doi.org/10.1007/s00394-018-1874-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6850907PMC
December 2019
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