title: Dimensions of oral-health-related quality of life.
abstract: 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.
authors.affiliation: Department of Prosthodontics and Materials Science, School of Dentistry, University of Leipzig, Nürnberger Str. 57, 04103 Leipzig, Germany. mike.john@medizin.uni-leipzig.de
authors.forename: M T
authors.initials: MT
authors.lastname: John
authors.forename: P
authors.initials: P
authors.lastname: Hujoel
authors.forename: D L
authors.initials: DL
authors.lastname: Miglioretti
authors.forename: L
authors.initials: L
authors.lastname: LeResche
authors.forename: T D
authors.initials: TD
authors.lastname: Koepsell
authors.forename: W
authors.initials: W
authors.lastname: Micheelis
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001294:Attitude to Health; D003142:Communication; D004955:Esthetics, Dental; D005157:Facial Pain / Q000523:psychology; D005858:Germany; D006801:Humans; D008409:Mastication / Q000502:physiology; D008875:Middle Aged; D009909:Oral Health; D011788:Quality of Life; D012917:Social Adjustment; D013060:Speech / Q000502:physiology