부산대학교 도서관

To authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1600-0528.2009.00489.x Byline: Hae-Young Kim (1), Moon-Sung Jang (2), Chong-Pyoung Chung (2), Dai-Il Paik (3), Yong-Duk Park (4), Lauren L. Patton (5), Young Ku (2) Keywords: chewing ability; oral health impact profile; oral health-related quality of life; quality of life; tooth loss Abstract: Abstract - Objective The aim of this study was to assess the association of chewing ability to oral health-related quality of life (OHRQoL) measured by the Oral Health Impact Profile-14 (OHIP-14) controlling for clinical oral health status, self-reported health status, demographic factors, and socioeconomic conditions among community-dwelling and institutionalized Korean elders. Methods This cross-sectional study comprised a sample of 307 community-dwelling and 102 institutionalized people over the age of 60, using a cluster sampling procedure. A questionnaire was implemented and a clinical oral examination was completed for each subject. The outcome variable of interest was the OHIP-14 score, and its associations with chewing ability, objective oral health status, self-reported health status, demographic factors, and socioeconomic conditions were assessed. Because of highly-skewed distribution of the OHIP-14 scores, nonparametric analytic methods were used. The final model was developed using a multivariable two-level logistic regression model for a dichotomized OHIP-14 score to account for the cluster sampling method applied to this study. Results The mean age of the participants was 75.4 years, with 67.7% being women. The median OHIP-14 score was 7. Negative oral health impacts were experienced fairly often or very often by a total of 36.4% of elderly. In the final model, elders who could chew none to three and four to six foods among seven indicator foods were 3.4 (P = 0.010) and 2.0 (P = 0.040) times more likely, respectively, to have worse OHRQoL compared with elders who could chew all seven food types. Also significant associations with worse OHRQoL were shown for being concerned about oral health [Odds Ratio (OR) = 4.9, P = 0.002], fair or better self-reported oral health (OR = 0.12, P = 0.002), very good/good self-reported general health (OR = 0.38, P = 0.008), being married (OR = 2.0, P = 0.054), and having a favourable economic status (OR = 0.43, P = 0.042). Conclusions This study showed highly significant association between chewing ability and OHRQoL measured by the OHIP-14 score after controlling for related factors. Amelioration of chewing ability might independently contribute to improving the OHRQoL of elders. Author Affiliation: (1)Department of Dental Hygiene, College of Medical Science, Konyang University, Korea (2)Department of Periodontology, Dental Research Institute, School of Dentistry, Seoul National University, Korea (3)Department of Preventive Dentistry, Dental Research Institute, School of Dentistry, Seoul National University, Korea (4)Department of Preventive Dentistry, Oral Biology Research Institute, School of Dentistry, Kyunghee University, Korea (5)Department of Dental Ecology, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA Article History: Submitted 26 August 2008; Accepted 8 June 2009 Article note: Young Ku, DDS, PhD, Department of Periodontology, School of Dentistry, Seoul National University, 28 Yeongun-Dong, Chongno-Gu, Seoul, 110-768, Korea, Tel: +82 2 2072 3182, Fax: +82 2 744 0051, e-mail: guy@snu.ac.kr