title: Factors associated with self-rated oral health among community-dwelling older Japanese: A cross-sectional study.
abstract: OBJECTIVE
  A cross-sectional study was carried out to investigate the determinants of self-rated oral health among community-dwelling older people in Japan.
  
  
  METHODS
  The participants were 897 (357 men and 540 women) aged 65 years and over who participated in a comprehensive geriatric health examination, which included an oral examination, a face-to-face interview assessing cognitive function, questionnaires regarding depressive symptoms and functional capacity, and a medical examination. The oral examination measured indices of oral health status: number of present teeth, number of functional teeth, occlusal force and amount of resting saliva. Multiple logistic regression analyses were carried out to determine the factors associated with poor self-rated oral health.
  
  
  RESULTS
  The mean age of the participants was 73.5 ± 5.0 years. The prevalence of poor and rather poor self-rated oral health was 11.5% and 29.5%, respectively. Multiple logistic regression analyses showed that the number of present teeth (odds ratio [OR] 0.97, 95% confidence intervals [CI] 0.95-0.99), difficulty in mastication (OR 3.20, CI 2.18-4.70), presence of xerostomia (OR 1.43, CI 1.02-2.01), total score on the MoCA-J (OR 1.06, CI 1.01-1.11), and reduction in frequency of leaving the house (OR 1.64, CI 1.12-2.41) were significantly associated with poor self-rated oral health.
  
  
  CONCLUSIONS
  The present results suggested that self-rated oral health was a significant factor in oral health status as well as overall well-being among community-dwelling older Japanese people.
authors.affiliation: Research Team for Promoting Independence of the Elderly, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.|Graduate School, Section of Oral Health Care Education, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ohara
authors.affiliation: Research Team for Promoting Independence of the Elderly, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Hirano
authors.affiliation: Department of Oral Disease, National Center for Geriatrics and Gerontology, Aichi, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Watanabe
authors.affiliation: Human Care Research Team, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Obuchi
authors.affiliation: Research Team for Promoting Independence of the Elderly, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
authors.forename: Hideyo
authors.initials: H
authors.lastname: Yoshida
authors.affiliation: Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Fujiwara
authors.affiliation: Department of Social Medicine, School of Medicine, Toho University, Tokyo, Japan.
authors.forename: Kazushige
authors.initials: K
authors.lastname: Ihara
authors.affiliation: Human Care Research Team, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Kawai
authors.affiliation: Graduate School, Section of Behavioral Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Shiro
authors.initials: S
authors.lastname: Mataki
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D015577:Geriatric Assessment; D006304:Health Status; D064368:Healthy Volunteers; D006801:Humans; D007564:Japan; D008019:Life Style; D016015:Logistic Models; D008297:Male; D009909:Oral Health; D014987:Xerostomia / Q000453:epidemiology
keywords: community-dwelling; lifestyle; oral function; self-rated oral health; xerostomia