title: Identification of dietary patterns and their relationships with general and oral health in the very old.
abstract: Little is known about the dietary patterns of Asian populations aged >=85 years and their associated factors. Thus, we aimed to (1) identify these dietary patterns and (2) clarify the relationships between the dietary pattern and health outcomes in a community-dwelling very old population. The Tokyo Oldest Old Survey on Total Health study is an observational cohort study comprising 512 Japanese subjects (women, n=288; men, n=224; age, 87.8±2.2 years). Dietary patterns were assessed by principal component analysis using a brief self-administered diet history questionnaire. Barthel index, Mini-Mental State Examination, and oral health status [maximum occlusal force (MOF), denture use, and dentulous / edentulous state] were also measured. Two dietary patterns were identified. The first factor component "traditional Japanese" was characterized by a high consumption of vegetables, seaweed, legumes, and fish. The second factor component "noodles and confectioneries" was characterized by a high consumption of noodles, confectioneries, and non-alcoholic beverages. Multivariable analysis showed that the "traditional Japanese" dietary pattern was inversely associated with dentulous state (OR: 0.53; 95% CI: 0.34-0.82), the lowest tertile of MOF (OR: 0.64; 95% CI: 0.42-0.99), and denture use (OR: 2.42; 95% CI: 1.26- 4.63) even after adjustment for potential confounders. Furthermore, the "noodles and confectioneries" dietary pattern was inversely associated with the lowest tertile of MOF (OR: 0.62; 95% CI: 0.40-0.94). However, there were no significant associations between these dietary patterns and disability or cognitive function. We identified two dietary patterns in the very old population, which were associated with oral health status.
authors.affiliation: Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan. Email: yosawa1028@gmail.com.|Sports Medicine Research Center, Keio University, Kanagawa, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Osawa
authors.affiliation: Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Yasumichi
authors.initials: Y
authors.lastname: Arai
authors.affiliation: Center for Preventive Medicine, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Michiyo
authors.initials: M
authors.lastname: Takayama
authors.affiliation: Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Takumi
authors.initials: T
authors.lastname: Hirata
authors.affiliation: Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Midori
authors.initials: M
authors.lastname: Kawasaki
authors.affiliation: Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Abe
authors.affiliation: Department of Complete Denture Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Iinuma
authors.affiliation: Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, Tokyo, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sasaki
authors.affiliation: Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Hirose
mesh_terms: D000369:Aged, 80 and over; D000818:Animals; D002182:Candy; D004032:Diet; D004034:Diet Surveys; D004040:Dietary Carbohydrates; D007887:Fabaceae; D005260:Female; D005399:Fishes; D005518:Food Preferences; D006304:Health Status; D006801:Humans; D007564:Japan; D008297:Male; D009909:Oral Health; D012624:Seaweed; D014675:Vegetables
chemical_list: D004040:Dietary Carbohydrates