(17-03-09)Vegetable and fruit intakes and risk of Barrett's esophagus in men and women

Olivia M Thompson1,2,3, Shirley AA Beresford1,2,3, Elizabeth A Kirk1,2,3 and Thomas L Vaughan1,2,3

1 From the Nutritional Sciences Program (OMT and EAK) and the Departments of Epidemiology (SAAB and TLV) and Pathobiology (EAK), University of Washington, Seattle, WA, and the Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA (OMT, SAAB, and TLV).
2 Supported by National Cancer Institute grants R01 CA72866, 2R25 CA092408-06, and K05 CA124911.
3 Reprints not available. Address correspondence to OM Thompson, Division of Cancer Control and Population Sciences, National Cancer Institute, 6130 Executive Boulevard, Room 4074A, MSC 7332, Bethesda, MD 20892-7335. E-mail: [email protected] .
Background: Barrett's esophagus (BE) is a risk factor for esophageal adenocarcinoma. Modifiable risk factors for BE are largely unknown.
Objective: The purpose of this study was to determine whether vegetable and fruit intakes are associated with BE risk.
Design: In a case-control study based in western Washington State, we compared the vegetable and fruit intakes of 170 patients with newly diagnosed BE with those of 182 controls from the general population. Relations between vegetable and fruit intakes and BE were examined by using unconditional logistic regression to compute odds ratios (ORs) and corresponding 95% CIs.
Results: Participants in the second (adjusted OR: 0.40; 95% CI: 0.23, 0.71) and third (adjusted OR: 0.33; 95% CI: 0.17, 0.63) tertiles of vegetable intake appeared to have a lower risk of BE (P for trend = 0.048) than did participants in the first tertile of vegetable intake. Similarly, participants in the second (adjusted OR: 0.49; 95% CI: 0.28, 0.86) and third (adjusted OR: 0.39; 95% CI: 0.21, 0.75) tertiles of combined vegetable and fruit intakes had a lower risk of BE (P for trend = 0.047) than did participants in the first tertile of vegetable and fruit intakes. Similar results were obtained in subanalyses limited to patients with visible and with long-segment BE.
Conclusions: The results support previous findings that increased intakes of vegetables and of vegetables and fruit are associated with a lower risk of BE in men and women. Prospective data that examine relations between diet and BE are needed.

Source: AJCN

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