Food Groups and Alcoholic Beverages and the Risk of Stomach Cancer: A Case-Control Study in Italy

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Abstract
To investigate the role of a wide range of foods and beverages on the risk of stomach cancer, we analyzed data from a case-control study carried out in Italy between 1997 and 2007 on 230 subjects with incident histologically confirmed stomach cancer (143 men and 87 women, age range 22–80 yr) and 547 controls (286 men and 261 women, age range 22–80 yr) admitted to hospital for acute, non-neoplastic diseases. Odds ratios (OR) of stomach cancer and their corresponding 95% confidence intervals (CI) were estimated using unconditional multiple logistic regression models, adjusted for age, sex, energy intake, and other selected variables. A direct association with stomach cancer risk was observed for cereals (OR = 2.07, 95% CI = 1.01–4.24, for the highest compared to the lowest quintile of intake, P for trend = 0.03), soups (OR = 1.94, 95% CI = 1.10–3.42, P for trend = 0.05), and potatoes (OR = 2.04, 95% CI = 1.05–3.98, P for trend = 0.04). Conversely, inverse trends in risk were observed with vegetables (OR = 0.47, 95% CI = 0.27–0.81, P for trend = 0.01) and fruit intake (OR = 0.53, 95% CI = 0.30–0.93, P for trend = 0.08). The results of this study confirm a protective role of vegetables and fruit against stomach cancer and suggest a detrimental effect of (refined) cereals on this neoplasm.

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