Gastroenterology
Volume 138, Issue 5 , Pages 1704-1713, May 2010

Selenium Status and the Risk of Esophageal and Gastric Cancer Subtypes: The Netherlands Cohort Study

  • Jessie Steevens

      Affiliations

    • GROW-School for Oncology and Developmental Biology, Department of Epidemiology, Maastricht University Medical Centre+, Maastricht, The Netherlands
    • Corresponding Author InformationReprint requests Address requests for reprints to: Jessie Steevens, MSc, GROW-School for Oncology and Developmental Biology, Department of Epidemiology, Maastricht University Medical Centre+, PO Box 616, 6200 MD Maastricht, The Netherlands. fax (31) 043 3884128
    • ,
  • Piet A. van den Brandt

      Affiliations

    • GROW-School for Oncology and Developmental Biology, Department of Epidemiology, Maastricht University Medical Centre+, Maastricht, The Netherlands
    • ,
  • R. Alexandra Goldbohm

      Affiliations

    • Department of Prevention and Health, TNO Quality of Life, Leiden, The Netherlands
    • ,
  • Leo J. Schouten

      Affiliations

    • GROW-School for Oncology and Developmental Biology, Department of Epidemiology, Maastricht University Medical Centre+, Maastricht, The Netherlands

Received 20 August 2009; accepted 3 December 2009. published online 14 December 2009.

Background & Aims

Selenium may protect against the development of esophageal squamous cell carcinoma (ESCC), esophageal adenocarcinoma (EAC), and gastric cardia adenocarcinoma (GCA). Only in very few studies have the associations with ESCC and GCA been investigated, and no epidemiologic studies exist on EAC.

Methods

We studied the association between selenium and risk of ESCC, EAC, and GCA within the prospective Netherlands Cohort Study, conducted among 120,852 men and women aged 55–69 years at baseline. In September 1986, the cohort members completed a questionnaire on risk factors for cancer and provided toenail clippings for determination of baseline selenium status. After 16.3 years of follow-up, 64 ESCC, 112 EAC, and 114 GCA cases and 2072 subcohort members were available for case-cohort analysis. Incidence rate ratios (RR) were calculated using Cox proportional hazards models.

Results

In multivariable analyses of selenium status, we found an inverse association with ESCC (RRperstandardunitincrement, 0.80; 95% confidence interval [CI]: 0.67–0.96) and a borderline significant inverse association with GCA (RR, 0.91; 95% CI: 0.80–1.02). No overall association was observed for EAC (RR, 1.05; 95% CI: 0.95–1.15), but, for women and never smokers, significant inverse associations were found (RRperstandardunitincrement, 0.72; 95% CI: 0.61–0.84 and RRperstandardunitincrement, 0.74; 95% CI: 0.64–0.86, respectively).

Conclusions

This prospective study supports an inverse association between toenail selenium and risk of ESCC and GCA and suggests an inverse association with risk of EAC in subgroups (women, never smokers, and low antioxidant consumers). These associations need confirmation.

Keywords: Selenium, Gastric Cancer, Esophageal Cancer, Cohort Studies

Abbreviations used in this paper: BMI, body mass index, EAC, esophageal adenocarcinoma, ESCC, esophageal squamous cell carcinoma, GCA, gastric cardia adenocarcinoma, IQR, interquartile range, NLCS, Netherlands Cohort Study on diet and cancer, RR, incidence rate ratio

 

 Conflicts of interest The authors disclose no conflicts.

 Funding Supported by grant UM 2006-3562 from the Dutch Cancer Society. The Dutch Cancer Society had no involvement in study design, in collection, analysis, and interpretation of data, in the writing of the report, or in the decision to submit the report for publication.

PII: S0016-5085(09)02112-X

doi:10.1053/j.gastro.2009.12.004

Gastroenterology
Volume 138, Issue 5 , Pages 1704-1713, May 2010