title: The Japanese version of the Oral Health Impact Profile (OHIP)--validation among young and middle-aged adults.
abstract: OBJECTIVE
  To validate the Japanese version of the Oral Health Impact Profile (OHIP-J) for use among young and middle-aged adults. Evaluating the criterion validity was particularly important in this study.
  
  
  METHODS
  The original Oral Health Impact Profile (OHIP) was translated into Japanese. Data from 6,079 subjects aged 20-59 were collected by means of a self-administered questionnaire and the oral condition records of a sample of workers. The survey involved items for the OHIP-J and self-rated oral health, denture wearing, number of missing teeth, work type, occupational rank, gender, and age. We adopted a self-rated oral health and number of missing teeth as validity criteria for this analysis.
  
  
  RESULTS
  Using multiple linear regression analysis, the adjusted total OHIP-J scores for respondents who rated their oral health as poor were higher than those who did not (46.6 vs. 27.6; p<0.001). The variable of missing teeth was significantly associated with the OHIP-J total and subscale scores independent of gender, age and denture wearing (p<0.001).
  
  
  CONCLUSIONS
  These findings suggest that the OHIP-J is suitable for assessing the oral health-related quality of life of young and middle-aged adults in Japan.
authors.affiliation: Department of Clinical Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan. r-ochide@med.uoeh-u.ac.jp
authors.forename: Reiko
authors.initials: R
authors.lastname: Ide
authors.forename: Ryoko
authors.initials: R
authors.lastname: Yamamoto
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Mizoue
mesh_terms: D000328:Adult; D000367:Age Factors; D003753:Dental Health Surveys; D003778:Dentures / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D009790:Occupations; D009909:Oral Health; D011788:Quality of Life; D015203:Reproducibility of Results; D012737:Sex Factors; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires; D016388:Tooth Loss / Q000453:epidemiology*; D014175:Translating