The hierarchical cluster analysis of oral health attitudes and behaviour using the Hiroshima University--Dental Behavioural Inventory (HU-DBI) among final year dental students in 17 countries |
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Authors: | Komabayashi Takashi Kawamura Makoto Kim Kang-Ju Wright Fredrick A C Declerck Dominique Goiâs Maria do Carmo Matias Freire Hu De-Yu Honkala Eino Lévy Gérard Kalwitzki Matthias Polychronopoulou Argy Yip Kevin Hak-Kong Eli Ilana Kinirons Martin J Petti Stefano Srisilapanan Patcharawan Kwan Stella Y L Centore Linda S |
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Affiliation: | Division of Endodontology, Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut, Farmington 06030-1715, USA. ICD38719@nifty.com |
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Abstract: | OBJECTIVE: To explore and describe international oral health attitudes/ behaviours among final year dental students. METHODS: Validated translated versions of the Hiroshima University-Dental Behavioural Inventory (HU-DBI) questionnaire were administered to 1,096 final-year dental students in 17 countries. Hierarchical cluster analysis was conducted within the data to detect patterns and groupings. RESULTS: The overall response rate was 72%. The cluster analysis identified two main groups among the countries. Group 1 consisted of twelve countries: one Oceanic (Australia), one Middle-Eastern (Israel), seven European (Northern Ireland, England, Finland, Greece, Germany, Italy, and France) and three Asian (Korea, Thailand and Malaysia) countries. Group 2 consisted of five countries: one South American (Brazil), one European (Belgium) and three Asian (China, Indonesia and Japan) countries. The percentages of 'agree' responses in three HU-DBI questionnaire items were significantly higher in Group 2 than in Group 1. They include: "I worry about the colour of my teeth."; "I have noticed some white sticky deposits on my teeth."; and "I am bothered by the colour of my gums." CONCLUSION: Grouping the countries into international clusters yielded useful information for dentistry and dental education. |
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Keywords: | Oral health attitudes/behaviour cross‐national comparison cluster analysis dendrogram questionnaire dental students educational methodology statistical approach |
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