Reliability and validity of the Myanmar version of the child oral health impact profile – short form 19

Abstract

The original English version of Child Oral Health Impact Profile-Short Form 19 , used to evaluate the oral health-related quality of life, has been translated into Chinese, Arabic, and Portuguese. The aim of this study was to assess the psychometric properties of a Myanmar version of the COHIP-SF 19 and to identify the explanatory factors that impact the COHIP-SF 19. Methods:The Myanmar COHIP-SF 19 was developed by a standard forward-backward translation. In total, 537 fifthgrade school children, aged 10-11 years (251 boys and 286 girls), completed the final version of the instrument and underwent oral examination. Psychometric properties such as internal consistency, test-retest reliability, and concurrent and discriminant validity were tested.Results: The Cronbach's alpha value for the total COHIP-SF 19 showed good internal consistency: the Cronbach's alpha value was 0.81 and intraclass correlation coefficient was 0.86. These results are consistent with those of the original English COHIP-SF 19. The concurrent validity test demonstrated higher total COHIP-SF 19 scores and higher scores on each subscale for parents reporting their children's general health with higher categories (i.e., "excellent," "very good," "good," "fair," and "poor") (p < 0.001) and for children with a higher self-perception of their oral health (p < 0.001). Discriminant validity presented that the quality of life was better for school children with a satisfactory oral health status than for school children who had an oral health problem. In multiple linear regression analysis, a significant association was found between a lower oral health-related quality of life and decayed permanent teeth, missing permanent teeth, decayed deciduous teeth, gingivitis, and malocclusion after adjusting for other confounding variables. Conclusion:Myanmar COHIP-SF 19 questionnaires were successfully developed and were appropriate for subjectively evaluating the oral health condition of children in Myanmar.