Prevalence of Irritable Bowel Syndrome and Its Relation to Lifestyle and Depression Quotient in a Japanese General Population

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We analyzed the prevalence of irritable bowel syndrome （IBS） and its relation to lifestyle and depressionquotient in a general population in Japan. Seven-hundred and sixty-three adults （288 males and 465 females） wereenrolled in a cross-sectional study of the Iwaki Health Promotion Project in 2008. Self-questionnaires regarding smokinghabit, alcohol consumption, exercise habit, dietary habit and depression quotient （Center for Epidemiologic StudiesDepression Scale） were given out. Each participant was checked for IBS according to the Rome II criteria. The oddsratios for IBS prevalence were calculated using a multiple logistic regression analysis with age, body mass index,depression quotient, exercise habit, smoking habit, alcohol consumption and five dietary patterns as the explanatoryvariables. In genders, depression quotient showed high odds ratios for the incidence of IBS. Alcohol consumptionshowed a significantly high odds ratio for the incidence of IBS in males and the Japanese traditional dietary patternhad a significantly lower odds ratio in females. In conclusion, in order to prevent the occurrence of IBS in a generalpopulation in Japan, abstinence from alcohol for men, the Japanese traditional dietary pattern for women and mentalmanagement in both genders may be recommend.