Validation of a Hebrew Version of the Child-OIDP Index, an Oral Health-related Quality of Life Measure for Children

Purpose: Sociodental indicators assess to what extent oral conditions interfere with normal social functions and alter behaviour such as attending work or school, parenting or home chores. The child OIDP (oral impact on daily performance), a sociodental indicator developed by Adulyan and Sheiham, is easy to apply and has a scoring system that quantifies the effect both by extent and frequency. The purpose of this study was to adapt the child OIDP into Hebrew and evaluate its validity and reliability. Materials and Methods: The questionnaire was translated from English into Hebrew and back again. After receiving permission from parents and from the children attending the consultation clinic of the Department of Children's Dentistry at the Hebrew University-Hadassah Dental School, we examined their dental condition and asked them to answer the questions. According to the results, we analysed the reliability and the validity of the questionnaire. Results: 179 children aged 6-11 years answered the questions. 88.8% of the children that attended the dental clinic experienced an oral or dental problem and 52.5% of them experienced interference in at least one of 8 everyday activities because of oral or dental problems in the 3 months prior to the interview. The OIDP was found valid in the aspects of Face, Content and Construct validity and with good internal reliability. Conclusions: The validity and the reliability of the Hebrew child OIDP found in the present study enables its use in future studies to assess the impact of oral health on children's quality of life. Keywords: child oral health, oral-health related quality of life