title: Relationship between dietary patterns and cognitive function in a community-dwelling population in Japan.
abstract: The purpose of this study was to clarify the association between dietary patterns and cognitive function in a community-dwelling population in Japan. A total of 388 volunteers (60 years and older) who participated in the Iwaki Health Promotion Project 2011 were recruited. Diet was assessed with a validated, self-administered brief-type diet history questionnaire. Dietary patterns were extracted from 52 predefined food groups by principal component analysis. The Mini-Mental State Examination was also used to measure global cognitive status. Three dietary patterns were identified as follows: "Healthy," "Noodle," and "Alcohol and accompaniment." Compared with the low tertile of the "Alcohol and accompaniment" pattern, only the middle tertile was independently related to an increased risk of poor cognitive function. In conclusions, present study failed to substantiate dose-dependent associations between dietary patterns and the risk of poor cognitive function. Further studies with longitudinal observations are warranted.
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan nsuga3@yahoo.co.jp.
authors.forename: Norio
authors.initials: N
authors.lastname: Sugawara
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Norio
authors.initials: N
authors.lastname: Yasui-Furukori
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Umeda
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Shoko
authors.initials: S
authors.lastname: Tsuchimine
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Ayako
authors.initials: A
authors.lastname: Kaneda
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Tsuruga
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Kaori
authors.initials: K
authors.lastname: Iwane
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Okubo
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Ippei
authors.initials: I
authors.lastname: Takahashi
authors.affiliation: Hirosaki University School of Medicine, Hirosaki, Japan.
authors.forename: Sunao
authors.initials: S
authors.lastname: Kaneko
mesh_terms: D000368:Aged; D000428:Alcohol Drinking / Q000453:epidemiology; D003071:Cognition; D003430:Cross-Sectional Studies; D004032:Diet / Q000706:statistics & numerical data*; D005260:Female; D006293:Health Promotion; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D025341:Principal Component Analysis; D012306:Risk
keywords: Japanese; Mini-Mental State Examination; cross-sectional studies; dietary patterns