Dimensions of oral-health-related quality of life

M. T. John, P. Hujoel, D. L. Miglioretti, L. LeResche, T. D. Koepsell, W. Micheelis

Research output: Contribution to journalArticlepeer-review

169 Scopus citations


Oral-health-related quality of life (OHRQoL) is expected to have multiple dimensions. It was the aim of this study to investigate the dimensional structure of OHRQoL measured by the Oral Health Impact Profile (German version) (OHIP-G) and to derive a summary score for the instrument. Subjects (N = 2050; age, 16-79 yrs) came from a national survey. We used rotated principal-components analysis to derive a summary score and to explore the dimensional structure of OHIP-G. The first principal component explained 50% of the variance in the data. The sum of OHIP-G item responses was highly associated with the first principal component (r = 0.99). This simple but informative OHIP-G summary score may indicate that simple sums are also potentially useful scores for other OHRQoL instruments. Four dimensions (psychosocial impact, orofacial pain, oral functions, appearance) were found. These OHIP-G dimensions may serve as a parsimonious set of OHRQoL dimensions in general.

Original languageEnglish (US)
Pages (from-to)956-960
Number of pages5
JournalJournal of dental research
Issue number12
StatePublished - Dec 2004


  • Dimensions
  • Factor analysis
  • Oral-health-related quality of life
  • Population-based study
  • Questionnaire


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