title: Risk indicators of oral health status among young adults aged 18 years analyzed by negative binomial regression.
abstract: BACKGROUND
  Limited information on oral health status for young adults aged 18 year-olds is known, and no available data exists in Hong Kong. The aims of this study were to investigate the oral health status and its risk indicators among young adults in Hong Kong using negative binomial regression.
  
  
  METHODS
  A survey was conducted in a representative sample of Hong Kong young adults aged 18 years. Clinical examinations were taken to assess oral health status using DMFT index and Community Periodontal Index (CPI) according to WHO criteria. Negative binomial regressions for DMFT score and the number of sextants with healthy gums were performed to identify the risk indicators of oral health status.
  
  
  RESULTS
  A total of 324 young adults were examined. Prevalence of dental caries experience among the subjects was 59% and the overall mean DMFT score was 1.4. Most subjects (95%) had a score of 2 as their highest CPI score. Negative binomial regression analyses revealed that subjects who had a dental visit within 3 years had significantly higher DMFT scores (IRR = 1.68, p < 0.001). Subjects who brushed their teeth more frequently (IRR = 1.93, p < 0.001) and those with better dental knowledge (IRR = 1.09, p = 0.002) had significantly more sextants with healthy gums.
  
  
  CONCLUSIONS
  Dental caries experience of the young adults aged 18 years in Hong Kong was not high but their periodontal condition was unsatisfactory. Their oral health status was related to their dental visit behavior, oral hygiene habit, and oral health knowledge.
authors: Hai-Xia
authors: HX
authors: Lu
authors: May Chun Mei
authors: MC
authors: Wong
authors: Edward Chin Man
authors: EC
authors: Lo
authors: Colman
authors: C
authors: McGrath
mesh_terms: D000293:Adolescent; D001294:Attitude to Health; D016010:Binomial Distribution; D015331:Cohort Studies; D004245:DMF Index; D003729:Dental Care / Q000706:statistics & numerical data; D005260:Female; D005500:Follow-Up Studies; D015438:Health Behavior; D007722:Health Knowledge, Attitudes, Practice; D006304:Health Status; D006305:Health Status Indicators; D006723:Hong Kong; D006801:Humans; D008297:Male; D009909:Oral Health / Q000706:statistics & numerical data*; D009910:Oral Hygiene / Q000706:statistics & numerical data; D010512:Periodontal Index; D011159:Population Surveillance; D012044:Regression Analysis; D012737:Sex Factors; D014099:Toothbrushing / Q000706:statistics & numerical data
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