Research

Child-OIDP index in Brazil: Cross-cultural adaptation and validation

Rodolfo AL Castro¹ , Maria IS Cortes² , Anna T Leão³ , Margareth C Portela¹ , Ivete PR Souza³ , Georgios Tsakos⁴ , Wagner Marcenes⁵ and Aubrey Sheiham⁴

¹  National School of Public Health, Oswaldo Cruz Foundation, Rua Leopoldo Bulhões, 1480/724, Manguinhos, Rio de Janeiro, 21031-210, Brazil

²  School of Dentistry, Pontifical Catholic University of Minas Gerais, Avenida Dom Jose Gaspar, 500, Prédio 46, Coração Eucarístico, Belo Horizonte, 35588-000, Brazil

³  School of Dentistry, Federal University of Rio de Janeiro, Avenida Brigadeiro Trompovsky s/n, Rio de Janeiro, 21941-590, Brazil

⁴  University College London, 1-19 Torrington Place, London, WC1E 6BT, UK

⁵  Barts and the London School of Medicine and Dentistry, Institute of Dentistry, Turner Street, London, E1 2AD, UK

author email corresponding author email

Health and Quality of Life Outcomes 2008, 6:68doi:10.1186/1477-7525-6-68

Published:	15 September 2008

Abstract

Background

Oral health-related quality of life (OHRQoL) measures are being increasingly used to introduce dimensions excluded by normative measures. Consequently, there is a need for an index which evaluates children's OHRQoL validated for Brazilian population, useful for oral health needs assessments and for the evaluation of oral health programs, services and technologies. The aim of this study was to do a cross-cultural adaptation of the Child Oral Impacts on Daily Performances (Child-OIDP) index, and assess its reliability and validity for application among Brazilian children between the ages of eleven and fourteen.

Methods

For cross-cultural adaptation, a translation/back-translation method integrated with expert panel reviews was applied. A total of 342 students from four public schools took part of the study.

Results

Overall, 80.7% of the sample reported at least one oral impact in the last three months. Cronbach's alpha was 0.63, the weighted kappa 0.76, and the intraclass correlation coefficient (ICC) 0.79. The index had a significant association with self-reported health measurements (self-rated oral health, satisfaction with oral health, perceived dental treatment needs, self-rated general health; all p < 0.01).

Conclusion

It was concluded that the Child-OIDP index is a measure of oral health-related quality of life that can be applied to Brazilian children.