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Health and Quality of Life Outcomes
Published in: Health and Quality of Life Outcomes 1/2017

Open Access 01-01-2017 | Research

Validation and reliability of the translated Malay version of the psychosocial impact of dental aesthetics questionnaire for adolescents

Authors: Wan Nurazreena Wan Hassan, Zamros Yuzadi Mohd Yusof, Siti Safuraa Zahirah Shahidan, Siti Farhana Mohd Ali, Mohd Zambri Mohamed Makhbul

Published in: Health and Quality of Life Outcomes | Issue 1/2017

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Abstract

Background

This paper describes the cross-cultural adaptation of the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) into Malay version (Malay PIDAQ), an oral health-related quality of life (OHRQoL) instrument specific for orthodontics for Malaysian adolescents between 12 and 17 years old.

Methods

The PIDAQ was cross-culturally adapted into Malay version by forward- and backward-translation processes, followed by psychometric validations. After initial investigation of the conceptual suitability of the measure for the Malaysian population, the PIDAQ was translated into Malay, pilot tested and back translated into English. Psychometric properties were examined across two age groups (319 subjects aged 12–14 and 217 subjects aged 15–17 years old) for factor structure, internal consistency, reproducibility, discriminant and construct validity, criterion validity, and assessment of floor and ceiling effects.

Results

Fit indices by confirmatory factor analysis showed good fit statistics (comparative fit index = 0.936, root-mean-square error of approximation = 0.064) and invariance across age groups. Internal consistency and reproducibility tests were satisfactory (Cronbach’s α = 0.71-0.91; intra-class correlations = 0.72-0.89). Significant differences in Malay PIDAQ mean scores were observed between subjects with severe malocclusion and those with slight malocclusion based on a self-rated and an investigator-rated malocclusion index, for all subscales and all age groups (p < 0.05). Construct validity of the Malay PIDAQ subscales with those who rated themselves with excellent to poor dental appearance and those who felt they needed or did not need braces, showed significant associations for all age groups (p < 0.05). Criterion validity also showed significant association between the Malay PIDAQ scores with those with and without impact on daily activities attributed to malocclusion. There were no ceiling effects detected but floor effects were detected for the Aesthetic Concern subscale.

Conclusion

The study has provided initial evidence for the validity and reliability of the Malay PIDAQ to assess the impact of malocclusion on the OHRQoL of 12–17 year old Malaysian adolescents.
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Metadata
Title
Validation and reliability of the translated Malay version of the psychosocial impact of dental aesthetics questionnaire for adolescents
Authors
Wan Nurazreena Wan Hassan
Zamros Yuzadi Mohd Yusof
Siti Safuraa Zahirah Shahidan
Siti Farhana Mohd Ali
Mohd Zambri Mohamed Makhbul
Publication date
01-01-2017
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2017
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/s12955-017-0600-5

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