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Comparison of the self-administered and interviewer-administered modes of the child-OIDP

Tsakos, G; Bernabe, E; O'Brien, K; Sheiham, A; de Oliveira, C; (2008) Comparison of the self-administered and interviewer-administered modes of the child-OIDP. Health and Quality of Life Outcomes , 6 , Article 40. 10.1186/1477-7525-6-40. Green open access

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Abstract

Background: The mode of questionnaire administration may affect the estimates and applicability of oral health-related quality of life indicators. The aim of this study was to compare psychometrically the self-administered Child-OIDP index with the original interviewer-administered instrument.Methods: This was a cross-sectional study of 144 consecutive children aged 9-16 years referred to orthodontic clinics in Bedfordshire. To compare the two administration modes of the Child-OIDP, the sample was randomly split in two groups. The two groups were analysed in terms of baseline characteristics, self-perceived measures (self-rated oral health, self-perceived need for braces, happiness with dental appearance, frequency of thinking about dental appearance), Child-OIDP performance scores and overall score and psychometric properties (criterion validity and internal reliability).Results: No significant difference between the two groups was found in relation to their sociodemographic profile and self-perceived measures. The self-and interviewer-administered Child-OIDP had identical mean scores and did not differ in recording any of the eight performances (p >= 0.206). For criterion validity, the correlation coefficients of the Child-OIDP with self-perceived measures were not different between the two modes of administration (p >= 0.118). Furthermore, the Cronbach's alpha values of the two groups were similar (p = 0.466).Conclusion: This study demonstrated that the self-administered Child-OIDP performed the same as the original interviewer-administered mode, while at the same time reducing administration burden. This provides support for the use of the self-administered Child-OIDP. Further studies should focus on a more comprehensive psychometric evaluation.

Type: Article
Title: Comparison of the self-administered and interviewer-administered modes of the child-OIDP
Open access status: An open access version is available from UCL Discovery
DOI: 10.1186/1477-7525-6-40
Publisher version: http://dx.doi.org/10.1186/1477-7525-6-40
Language: English
Additional information: © 2008 Tsakos et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: Quality-of-life, Sociodental approach, Telephone interview, Home interview, Health surveys, Mail, Questionnaires, Version, Scores, Women
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Epidemiology and Public Health
URI: https://discovery.ucl.ac.uk/id/eprint/104222
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