title: Food intake and functional constipation: a cross-sectional study of 3,835 Japanese women aged 18-20 years.
abstract: Although we previously observed significant associations between intakes of several foods and constipation, definition of constipation was completely based on subjective perception assessed by a quite simple and single question: do you often have constipation? In this study, we examined the associations between food intake and functional constipation as defined according to symptom-based criteria (Rome I criteria: straining, hard stools, incomplete evacuation, and infrequency of bowel movement). Subjects were 3,835 female Japanese dietetic students aged 18-20 y from 53 institutions in Japan. Dietary intake was estimated with a validated, self-administered diet history questionnaire. The prevalence of functional constipation was 26.2%. Dietary intakes of several foods were significantly associated with functional constipation. A multivariate adjusted odds ratio (95% confidence interval; p for trend) for women in the highest quintile of dietary intake compared with those in the lowest was 0.59 (0.46-0.75; <0.0001) for rice, 0.77 (0.61-0.97; 0.003) for pulses, 1.64 (1.30-2.08; <0.0001) for confectioneries, and 1.41 (1.11-1.78; 0.01) for bread. In conclusion, intake of rice and pulse was negatively and that of confectioneries and bread was positively associated with functional constipation among a population of young Japanese women, which was generally consistent with our previous study where constipation was assessed by a quite simple question.
authors.affiliation: Nutritional Epidemiology Program, National Institute of Health and Nutrition, Tokyo 162-8636, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Murakami
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sasakii
authors.forename: Hitomi
authors.initials: H
authors.lastname: Okubo
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Yoko
authors.initials: Y
authors.lastname: Hoso
authors.forename: Mami
authors.initials: M
authors.lastname: Itabashi
mesh_terms: D000293:Adolescent; D000328:Adult; D015986:Confounding Factors, Epidemiologic; D003248:Constipation / Q000453:epidemiology / Q000503:physiopathology*; D003430:Cross-Sectional Studies; D015930:Diet Records; D004435:Eating; D005247:Feeding Behavior; D005260:Female; D005518:Food Preferences; D005769:Gastrointestinal Motility; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008019:Life Style; D016015:Logistic Models; D015999:Multivariate Analysis; D015995:Prevalence; D011795:Surveys and Questionnaires