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Toenail selenium status and the risk of Barrett’s esophagus: the Netherlands Cohort Study
Authors
Ann L. C. Driessen
R. Alexandra Goldbohm
+5 more
Clément J. R. Huysentruyt
Yolande C. A. Keulemans
Leo J. Schouten
Jessie Steevens
Piet A. van den Brandt
Publication date
1 January 2010
Publisher
Springer Netherlands
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Abstract
Objective: To investigate the association between selenium and the risk of Barrett's esophagus (BE), the precursor lesion of esophageal adenocarcinoma. Methods: Data from the prospective Netherlands Cohort Study were used. This cohort study was initiated in 1986, when 120,852 subjects aged 55-69 years completed a questionnaire on dietary habits and lifestyle, and provided toenail clippings for the determination of baseline selenium status. After 16.3 years of follow-up, 253 BE cases (identified through linkage with the nationwide Dutch pathology registry) and 2,039 subcohort members were available for case-cohort analysis. Cox proportional hazards models were used to calculate incidence rate ratios (RR). Results: The multivariable-adjusted RR for the highest versus the lowest quartile of toenail selenium was 1.06 (95% CI 0.71-1.57). No dose-response trend was seen (p trend = 0.99). No association was found in subgroups defined by sex, smoking status, body mass index (BMI), or intake of antioxidants. For BE cases that later progressed to high-grade dysplasia or adenocarcinoma, the RR for a selenium level above the median vs. below the median was 0.64 (95% CI 0.24-1.76). Conclusions: In this large prospective cohort study, we found no evidence of an association between selenium and risk of BE. © 2010 The Author(s)
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