Validation of the Polish version of the oral health impact profile-14.

Abstract

The Oral Health Impact Profile-14 (OHIP-14) is an example of a specific questionnaire used for assessing the quality of life in relation to oral health. The aim of this study was to validate the Polish version of the original English Short-Form OHIP-14 questionnaire. The Polish version of the OHIP-14 instrument had been prepared in accordance with generally accepted standards. The main study was conducted among a group of 150 subjects of both genders, aged from 35 to 91 who were randomly selected. Statistical analysis was made by STATISTICA software using the Cronbach alpha reliability test, Mann-Whitney U test, multiple comparison post-hoc test - LSD and Spearman`s correlation coefficient. The total OHIP-14 score was 8.72 ± 13.39, out of which the highest value was for item 4 (uncomfortable to eat 0.89 ± 1.19). The value of the alpha Cronbach coefficient was above 0.9 for all 14 items of the OHIP-14 instrument indicating excellent internal consistency. Positive relationships between all items of the matrix of the inter-items correlation coefficients were found. The value of coefficients ranged from 0.56 to 0.90 at a significance level of p < 0.01. Construct validity was supported by the fact that oral health condition was correlated with total OHIP score. It was observed that there is a correlation between the quality of life evaluated with the OHIP-14 test and dental condition, dental needs, wearing removable dentures and self-assessment of general health and oral health condition. The obtained data indicated the reliability and validity of OHIP-14 instrument for the assessment of oral health-related quality of life for in Polish adult population.