Name: | Description: | Size: | Format: | |
---|---|---|---|---|
263.81 KB | Adobe PDF |
Advisor(s)
Abstract(s)
Objective: Evaluate the validity, reliability, and factorial
invariance of the complete Portuguese version of the
Oral Health Impact Profile (OHIP) and its short version
(OHIP-14). Methods: A total of 1,162 adults enrolled in
the Faculty of Dentistry of Araraquara/UNESP participated
in the study; 73.1% were women; and the mean
age was 40.7 ± 16.3 yr. We conducted a confirmatory
factor analysis, where χ2/df, comparative fit index, goodness
of fit index, and root mean square error of approximation
were used as indices of goodness of fit. The
convergent validity was judged from the average variance
extracted and the composite reliability, and the
internal consistency was estimated by Cronbach standardized
alpha. The stability of the models was evaluated
by multigroup analysis in independent samples (test
and validation) and between users and nonusers of dental
prosthesis. Results: We found best-fitting models for the
OHIP-14 and among dental prosthesis users. The convergent
validity was below adequate values for the factors
“functional limitation” and “physical pain” for the
complete version and for the factors “functional limitation”
and “psychological discomfort” for the OHIP-14.
Values of composite reliability and internal consistency
were below adequate in the OHIP-14 for the factors
“functional limitation” and “psychological discomfort.”
We detected strong invariance between test and validation
samples of the full version and weak invariance for
OHIP-14. The models for users and nonusers of dental
prosthesis were not invariant for both versions.
Conclusion: The reduced version of the OHIP was parsimonious,
reliable, and valid to capture the construct
“impact of oral health on quality of life,” which was
more pronounced in prosthesis users.
Description
Keywords
Quality of life Oral health Validation studies Weights and measures Dental prosthesis Scales
Citation
Journal of Dental Research, 93, 645-650. doi: 10.1177/0022034514533798
Publisher
SAGE Publications