Factor Analysis of Discontinuation of Regular Dental Check-ups by Patients Using Data-mining Methods

  • SUGIURA Go
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • KISHI Mitsuo
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • AIZAWA Fumie
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • ABE Akiko
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • MINAMI Kentaro
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • INABA Daisuke
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • SATO Kazuhiro
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
  • YONEMITSU Masami
    Division of Oral Health, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University

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Other Title
  • データマイニングの手法を用いた定期歯科受診者の受診中断に関わる要因の分析
  • データマイニング ノ シュホウ オ モチイタ テイキ シカ ジュシンシャ ノ ジュシン チュウダン ニ カカワル ヨウイン ノ ブンセキ

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Abstract

Reports indicate that tooth loss can be prevented through regular mechanical tooth cleaning and guidance on oral hygiene. In response to this, in the present study, factor analysis was conducted on the discontinuation of regular dental check-ups using data-mining. Questionnaires were administered to 106 patients receiving regular dental check-ups through the outpatient preventive dental services of a university hospital. The content of the questions was related to feelings, requests, and satisfaction regarding regular dental check-ups, as well as the oral health-related quality of life (QOL). The General Oral Health Assessment Index (GOHAI) was used to assess the oral health-related QOL. Additionally, the sex, age, and residence of the patients were obtained through medical records. Patients were grouped into two: respondents who had continued to receive dental check-ups after one year (continuation group: n=75), and those who had discontinued check-ups after more than six months (discontinuation group: n=31). A comparison of these groups showed that the discontinuation group scored significantly lower on the GOHAI than the continuation group (P<0.01). Furthermore, a decision tree analysis of the groups revealed that, among those who scored ≦40 points on the GOHAI (n=11), 82% (n=9) of such respondents had discontinued check-ups. Respondents who scored ≧41 points on the GOHAI were more likely to have undergone continued check-ups. However, most of those who did not describe check-ups as "safe" and "comfortable" had discontinued treatment. The results indicate that those with a low oral health-related QOL tend to discontinue regular dental check-ups, and those who feel "safe" and "comfortable" about regular dental check-ups appear more likely to continue attending such check-ups.

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