title: Derivation and validation of a short-form oral health impact profile.
abstract: Growing recognition that quality of life is an important outcome of dental care has created a need for a range of instruments to measure oral health-related quality of life. This study aimed to derive a subset of items from the Oral Health Impact Profile (OHIP-49)-a 49-item questionnaire that measures people's perceptions of the impact of oral conditions on their well-being. Secondary analysis was conducted using data from an epidemiologic study of 1217 people aged 60+ years in South Australia. Internal reliability analysis, factor analysis and regression analysis were undertaken to derive a subset (OHIP-14) questionnaire and its validity was evaluated by assessing associations with sociodemographic and clinical oral status variables. Internal reliability of the OHIP-14 was evaluated using Cronbach's coefficient alpha. Regression analysis yielded an optimal set of 14 questions. The OHIP-14 accounted for 94% of variance in the OHIP-49; had high reliability (alpha = 0.88); contained questions from each of the seven conceptual dimensions of the OHIP-49; and had a good distribution of prevalence for individual questions. OHIP-14 scores and OHIP-49 scores displayed the same pattern of variation among sociodemographic groups of older adults. In a multivariate analysis of dentate people, eight oral status and sociodemographic variables were associated (P < 0.05) with both the OHIP-49 and the OHIP-14. While it will be important to replicate these findings in other populations, the findings suggest that the OHIP-14 has good reliability, validity and precision.
authors.affiliation: Department of Dental Ecology, University of North Carolina 27599-7450, USA.
authors.forename: G D
authors.initials: GD
authors.lastname: Slade
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001294:Attitude to Health; D003430:Cross-Sectional Studies; D003729:Dental Care; D003817:Dentition; D005163:Factor Analysis, Statistical; D005260:Female; D006304:Health Status; D006801:Humans; D016018:Least-Squares Analysis; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009909:Oral Health; D015995:Prevalence; D011594:Psychometrics; D011788:Quality of Life; D012044:Regression Analysis; D015203:Reproducibility of Results; D012959:Socioeconomic Factors; D013021:South Australia; D011795:Surveys and Questionnaires; D016896:Treatment Outcome