兵庫県における「８０２０運動」実績調査報告―高齢者の現在歯数ならびに３年間における喪失歯数と医科診療費に関する追跡調査―

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タイトル別名
  • A Three-year Follow-up Study of the Relationship among the Numbers of Present Teeth
  • 高齢者の現在歯数ならびに3年間における喪失歯数と医科診療費に関する追跡調査

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Objectives: The purpose of this study was to clarify the relationship between the number of present teeth, the loss of teeth and medical care expenditure among the elderly.<BR>Methods: The study examined approximately 40, 000 elderly residents who were aged 70 and over in Hyogo Prefecture. Using the National Health Insurance scheme, the number of present teeth for those who visited dental clinics between May 2002 and May 2005 was recorded and their information was matched with their subsequent annual medical records. The relationship between the number of present teeth and the patients' annual medical expenditure was examined. The number of remaining teeth at baseline, the number of teeth lost and the change of annual medical expenditure over three years were compared.<BR>Results: Annual medical expenditure is higher with age, in males, and for those who have fewer present teeth, all statistically significant at p<0.001 level. On the other hand, no statistical significance was seen for the relationship between the three-year change of annual medical expenditure, the number of present teeth at baseline and the number of teeth lost.<BR>Conclusion: Our research results imply that the maintenance of one's own teeth may lead to less medical expenditure, although tooth loss may not affect medical expenditure in a short term. It is recommended to further explore specific disease-based medical expenditure and a long-term follow-up study for the impact of loss of teeth on medical expenditure.

収録刊行物

  • 老年歯科医学

    老年歯科医学 23 (2), 132-139, 2008

    一般社団法人 日本老年歯科医学会

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