title: Predictors of chewing difficulty onset among dentate adults: 24-month incidence.
abstract: OBJECTIVE
  Chewing ability is an important measure of health-related quality of life, yet few studies have examined predictors of chewing difficulty in community-based samples. This study describes longitudinal patterns of chewing difficulty and identifies predictors of chewing difficulty onset.
  
  
  METHODS
  The Florida Dental Care Study (FDCS) was a longitudinal study of oral health and related behaviors. Interviews and a clinical exam were conducted with a sample that included persons who had at least one tooth and were aged 45 years or older (n = 873). The five-item chewing index of Leake (1990), with minor revision, was the outcome of interest.
  
  
  RESULTS
  Approximately 21 percent of baseline participants reported chewing difficulty and about 34 percent reported difficulty during the study. Having infected or sore gums, loose tooth, loose crown or bridge, toothache pain, lower numbers of opposing pairs of teeth, dry mouth, and being female were significant predictors of incident chewing difficulty.
  
  
  CONCLUSIONS
  Self-reported oral disease and tissue damage and toothache pain were strong predictors of decline in chewing ability. Additionally, women were identified as a high-risk group for incident chewing difficulty. Future research should elaborate further the pathways through which these factors affect oral function.
authors.affiliation: Department of Sociology, University of Florida, PO Box 117330, Gainesville, FL 32611-7330, USA. peek@soc.ufl.edu
authors.forename: Chuck W
authors.initials: CW
authors.lastname: Peek
authors.forename: Gregg H
authors.initials: GH
authors.lastname: Gilbert
authors.forename: R Paul
authors.initials: RP
authors.lastname: Duncan
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D016009:Chi-Square Distribution; D003442:Crowns / Q000706:statistics & numerical data; D019232:Dental Restoration Failure; D003829:Denture, Partial / Q000706:statistics & numerical data; D005260:Female; D005431:Florida; D005500:Follow-Up Studies; D005544:Forecasting; D005882:Gingival Diseases / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007576:Jaw, Edentulous, Partially / Q000453:epidemiology; D008137:Longitudinal Studies; D008297:Male; D008409:Mastication / Q000502:physiology*; D008875:Middle Aged; D009059:Mouth Diseases / Q000453:epidemiology*; D016016:Proportional Hazards Models; D011788:Quality of Life; D012737:Sex Factors; D013223:Statistics as Topic; D014076:Tooth Diseases / Q000453:epidemiology*; D014086:Tooth Mobility / Q000453:epidemiology; D014098:Toothache / Q000453:epidemiology; D014987:Xerostomia / Q000453:epidemiology