Abstract
The concept of oral health-related quality of life (OHRQOL) is investigated in this study. The aim was to explore the dimensionality of variables measuring OHRQOL in an adult Swedish population and to discuss the findings in relation to existing indices. The study was based on responses to a 1998 questionnaire sent to a random sample of 1974 persons aged between 50 and 75 years. There were 22 variables based on questions concerning oral situation and the impact on 7 theoretically different dimensions of QOL. The majority were satisfied with their oral health situation. During the previous 12 months, 16% of the population had experienced problems with their mouth or teeth on at least one occasion per mouth. Principal components analysis was used to analyze the dimensionality of the variables. Three factors accounted for 59% of the variance: (1) Physical and social disability, (2) psychological discomfort and disability, and (3) functional limitation and physical pain. The perception of OHRQOL is multidimensional, but the dimensions are not equally important. The dimensions of OHRQOL found in the present study are similar to those of existing instruments.
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