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Some psychometric properties of the Chinese version of the Modified Dental Anxiety Scale with cross validation

Yuan, Siyang; Freeman, Ruth; Lahti, Satu; Lloyd-Williams, Ffion and Humphris, Gerry (2008) Some psychometric properties of the Chinese version of the Modified Dental Anxiety Scale with cross validation. Health and Quality of Life Outcomes, 6 . Article Number: 22. ISSN 1477-7525

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Abstract

Objective: To assess the factorial structure and construct validity for the Chinese version of the Modified Dental Anxiety Scale (MDAS). Materials and methods: A cross-sectional survey was conducted in March 2006 from adults in the Beijing area. The questionnaire consisted of sections to assess for participants' demographic profile and dental attendance patterns, the Chinese MDAS and the anxiety items from the Hospital Anxiety and Depression Scale (HADS). The analysis was conducted in two stages using confirmatory factor analysis and structural equation modelling. Cross validation was tested with a North West of England comparison sample. Results: 783 questionnaires were successfully completed from Beijing, 468 from England. The Chinese MDAS consisted of two factors: anticipatory dental anxiety (ADA) and treatment dental anxiety (TDA). Internal consistency coefficients (tau non-equivalent) were 0.74 and 0.86 respectively. Measurement properties were virtually identical for male and female respondents. Relationships of the Chinese MDAS with gender, age and dental attendance supported predictions. Significant structural parameters between the two sub-scales (negative affectivity and autonomic anxiety) of the HADS anxiety items and the two newly identified factors of the MDAS were confirmed and duplicated in the comparison sample. Conclusion: The Chinese version of the MDAS has good psychometric properties and has the ability to assess, briefly, overall dental anxiety and two correlated but distinct aspects.

Item Type:Article
Additional Information:Published: 25 March 2008. 11 pages (page number not for citation purposes).
Uncontrolled Keywords:Hospital Anxiety and Depression Scale; anticipatory dental anxiety; treatment dental anxiety; dental anxiety; improving patient oral health care
Subjects:R Medicine > RK Dentistry
R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Medicine > School of Population, Community & Behavioural Sciences
DOI:10.1186/1477-7525-6-22
Publisher's Statement:© 2008 Yuan 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.
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Refereed:Yes
Status:Published
ID Code:712
Deposited On:10 Nov 2008 16:34
Last Modified:19 May 2011 21:14

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