Diet high in dairy products could mean decreased stomach cancer in males, say Japanese researchers.
They sought to examine the associations between dietary patterns and the risk of stomach cancer mortality in a cohort study.
Factor analysis on food frequency questionnaire was conducted among 25,730 males and 37,673 females in a cohort study in Japan - three dietary patterns were identified - "vegetable"; "animal food," and "dairy product." The Cox proportional hazards model was used to estimate the hazard ratio (HR) with stomach cancer mortality.
While the "vegetable" pattern showed no association with stomach cancer mortality in either sex, the "dairy product" pattern was significantly associated with a decreased risk of stomach cancer in males. In addition, the "animal food" pattern tended to be associated with a slightly increased risk in females.
A diet high in dairy products may be associated with a decreased risk of stomach cancer mortality in males, the scientists concluded, but they did not observe any significant association of this condition with other dietary patterns in either sex.
The research was led by Truong-Minh Pham, MD, PhD, Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu-shi. The findings have been published in the Annals of Epidemiology.