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  • Title: 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.
    Author: Komabayashi T, Kawamura M, Kim KJ, Wright FA, Declerck D, Goiâs Mdo C, Hu DY, Honkala E, Lévy G, Kalwitzki M, Polychronopoulou A, Yip KH, Eli I, Kinirons MJ, Petti S, Srisilapanan P, Kwan SY, Centore LS.
    Journal: Int Dent J; 2006 Oct; 56(5):310-6. PubMed ID: 17069075.
    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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