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2005 Fiscal Year Final Research Report Summary

Relationships between tooth number and cardiovascular morbidity or total mortality in 8020 study

Research Project

Project/Area Number 15390655
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Social dentistry
Research InstitutionKyushu Dental College

Principal Investigator

TAKATA Yutaka  Kyushu Dental College, Dentistry, Professor, 歯学部, 教授 (40163208)

Co-Investigator(Kenkyū-buntansha) ANSAI Toshihiro  Kyushu Dental College, Dentistry, Associate Professor, 歯学部, 助教授 (80244789)
AWANO Shuji  Kyushu Dental College, Dentistry, Lecturer, 歯学部, 講師 (20301442)
AKIFUSA Sumio  Kyushu Dental College, Dentistry, Adjunct Researcher, 歯学部, 特別研修員 (40295861)
FUKUHARA Masayo  Kyushu Dental College, Dentistry, Adjunct Researcher, 歯学部, 特別研修員 (90360057)
SONOKI Kazuo  Kyushu Dental College, Dentistry, Assistant, 歯学部, 助手 (50316155)
Project Period (FY) 2003 – 2005
Keywordselderly / 8020 / chewing / general condition / mortality / ADL / epidemiology / tooth
Research Abstract

In 1998, 823 (309 males and 514 females) 80-year-old individuals, each residing in one of three cities, four towns, one village, or one ward in Fukuoka Prefecture, Japan, participated in the present study. 697 of 823 underwent a laboratory blood examination. During the four-year follow-up, 140 individuals (66 males and 74 females) died. Of these, 43 deaths were due to respiratory system including pneumonia, 36 to cancer, and 34 to cardiovascular diseases with strokes.
Four-year total mortality was related significantly with chewing ability (P=0.01). Compared with individuals capable of chewing 5-15 foods, a shorter survival period was found among individuals of chewing only 0-4 foods. Multivariate Cox proportional analysis adjusted with gender and ADL also showed a poor survival in individuals chewing only 0-4 foods than in those chewable all 15 foods.
Next, only 697 subjects (277 males and 420 females) who underwent blood examination at 80-year were analyzed. During 4-year follow-up, 108 individuals (58 males and 50 females) died. Cox analysis with adjustment for not only gender and ADL but also smoking, BMI, BP, and serum concentrations of cholesterol, glucose, and albumin also demonstrated 2.38 times (P=0.03) higher mortality in individual chewable only 0-4 foods than in those chewing all 15 foods. Similarly, in 5.5-year follow study, subjects who were able to chew 0-4 foods had 2.8 times (P=0.005) higher mortality than those capable to chew all 15 foods, using Logistic regression analysis.
Additionally, by logistic regression analysis, functional dependency was 7.532 times more prevalent in individuals capable of chewing 4 foods or fewer, and 3.333 times more prevalent in those chewing 5-9, than in those chewing all 15 items.
Chewing ability may be independently related with survival and functional status in 80-year olds.

  • Research Products

    (13 results)

All 2004 2003

All Journal Article (12 results) Book (1 results)

  • [Journal Article] Relationship of physical fitness to chewing in 80-year-olds.2004

    • Author(s)
      Takata Y, et al.
    • Journal Title

      Oral Diseases 10(1)

      Pages: 44-49

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Relationship between hepatitis virus infection and dental status in an 80-year-old population.2004

    • Author(s)
      Takata Y, et al.
    • Journal Title

      Journal of Disability and Oral Health 5(2)

      Pages: 65-69

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Activities of daily living and chewing ability in an 80-year-old population.2004

    • Author(s)
      Takata Y, et al.
    • Journal Title

      Oral Diseases 10(6)

      Pages: 365-368

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 健康な体と身体は口腔から-内科医から見た8020運動-80歳福岡県住民における現在歯数・咀嚼能力と全身との関係 : 特に心電図虚血性変化、日常生活活動能力、運動能力との関係2004

    • Author(s)
      高田豊, 他
    • Journal Title

      日歯医学会誌 23

      Pages: 13-18

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Relationship of physical fitness to chewing in 80-year-olds.2004

    • Author(s)
      Takata Y, at al.
    • Journal Title

      Oral Diseases 10(1)

      Pages: 44-49

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Activities of daily living and chewing ability in an 80-year-old population.2004

    • Author(s)
      Takata Y, at al.
    • Journal Title

      Oral Diseases 10(6)

      Pages: 365-368

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relationship between general condition and present tooth number or chewing ability in 80-year-old habitants in Fukuoka : Relation, in particular, with electrocardiography ischemic change, activity of daily living, and exercise capacity2004

    • Author(s)
      Takata Y, at al.
    • Journal Title

      Journal of the Japanese Association for Dental Science 23

      Pages: 13-18

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Evaluation of calcified carotid artery atheromas detected by panoramic radiographs among 80-year-olds.2003

    • Author(s)
      Ohba T, Takata Y, et al.
    • Journal Title

      Oral Surgery Oral Medicine Oral Pathology Oral Radiology Endodontology 96(5)

      Pages: 647-650

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Association of the dental status with blood pressure and heart rate in 80-year-old subjects.2003

    • Author(s)
      Matsumura K, et al., Takata Y
    • Journal Title

      Japanese Heart Journal 44(6)

      Pages: 943-951

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Evaluation of calcified carotid artery atheromas detected by panoramic radiographs among 80-year-olds.2003

    • Author(s)
      Ohba T, Takata Y, at al.
    • Journal Title

      Oral Surgery Oral Medicine Oral Pathology Oral Radiology Endodontology 96 (5)

      Pages: 647-650

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Association of the dental status with blood pressure and heart rate in 80-year-old subjects.2003

    • Author(s)
      Matsumura K, at al., Takata Y
    • Journal Title

      Japanese Heart Journal 44(6)

      Pages: 943-951

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Geriatrics.2003

    • Author(s)
      Takata Y
    • Journal Title

      Medicine for Dentistry, second edition revision

      Pages: 333-339

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 歯科のための内科学. 改訂第2版2003

    • Author(s)
      高田豊
    • Total Pages
      333-339
    • Publisher
      南江堂
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2008-05-27  

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