title: Correlates of root caries experience in middle-aged and older adults in the Northwest Practice-based REsearch Collaborative in Evidence-based DENTistry research network.
abstract: BACKGROUND
  The authors examined the correlates of root caries experience for middle-aged adults (aged 45-64 years) and older adults (65 years and older) to test the hypothesis that the factors related to root caries are different for middle-aged adults than they are for older adults.
  
  
  METHODS
  The authors conducted an observational cross-sectional study that focused on adult patients aged 45 to 97 years recruited from the Northwest Practice-based REsearch Collaborative in Evidence-based DENTistry research network (N = 775). The outcome variable was any root caries experience (no/yes). The authors hypothesized that sociodemographic, intra- oral and behavioral factors were root caries correlates. The authors used Poisson regression models to generate overall and age-stratified prevalence ratios (PRs) of root caries, and they used generalized estimating equations to account for practice-level clustering of participants.
  
  
  RESULTS
  A total of 19.6 percent of adults had any root caries. A dentist's assessment that the patient was at high risk of developing any caries was associated with greater prevalence of root caries experience in both middle-aged adults (PR, 2.70; 95 percent confidence interval [CI], 1.63-4.46) and older adults (PR, 1.87; 95 percent CI, 1.19-2.95). The following factors were associated significantly with increased root caries prevalence but only for middle-aged adults: male sex (P = .02), self-reported dry mouth (P < .001), exposed roots (P = .03) and increased frequency of eating or drinking between meals (P = .03). No other covariates were related to root caries experience for older adults.
  
  
  CONCLUSIONS
  Within a practice-based research network, the factors associated with root caries experience were different for middle-aged adults than they were for older adults. Research is needed to identify relevant root caries correlates for adults 65 years and older. Practical Implications. Interventions aimed at preventing root caries are likely to be different for middle-aged adults than for older adults. Dentists should use root caries prevention programs that address appropriate aged-based risk factors.
authors: Department of Oral Health Sciences, School of Dentistry, University of Washington, Box 357475, Seattle, Wash. 98195, USA. dchi@uw.edu
authors: Donald L
authors: DL
authors: Chi
authors: Joel H
authors: JH
authors: Berg
authors: Amy S
authors: AS
authors: Kim
authors: JoAnna
authors: J
authors: Scott
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000428:Alcohol Drinking / Q000453:epidemiology; D055812:Community-Based Participatory Research; D003430:Cross-Sectional Studies; D004245:DMF Index; D003733:Dental Caries Susceptibility; D003773:Dental Plaque / Q000453:epidemiology; D004522:Educational Status; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007182:Income / Q000706:statistics & numerical data; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D015205:Northwestern United States / Q000453:epidemiology; D009910:Oral Hygiene; D015995:Prevalence; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D017213:Root Caries / Q000453:epidemiology*; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology; D014092:Tooth Root / Q000473:pathology; D014987:Xerostomia / Q000453:epidemiology
keywords: Root caries; aged; dental caries susceptibility; older adults; risk factors
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