Association between Oral Condition and the Occurrence of Disability or Mortality in the Latter-stage Elderly

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  • SAHARA Kumiko
    Department of Hygiene and Oral Health Science, Tokushima University Graduate School of Biomedical Sciences
  • FUKUI Makoto
    Department of Hygiene and Oral Health Science, Tokushima University Graduate School of Biomedical Sciences
  • SAKAMOTO Harumi
    Department of Hygiene and Oral Health Science, Tokushima University Graduate School of Biomedical Sciences
  • DOI Tokiko
    Department of Hygiene and Oral Health Science, Tokushima University Graduate School of Biomedical Sciences
  • YOSHIOKA Masami
    Department of Oral Health Sciences, Faculty of Health and Welfare, Tokushima Bunri University
  • OKAMOTO Yoshifumi
    Tokushima Dental Association
  • MATSUMOTO Kimi
    Tokushima Dental Association
  • MATSUYAMA Miwa
    Department of Oral Health Care and Rehabilitation, Tokushima University Graduate School of Biomedical Sciences
  • KAWANO Fumiaki
    Department of Comprehensive Dentistry, Tokushima University Graduate School of Biomedical Sciences
  • HINODE Daisuke
    Department of Hygiene and Oral Health Science, Tokushima University Graduate School of Biomedical Sciences

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Other Title
  • 後期高齢者の口腔状態と要介護状態または死亡発生との関連性
  • コウキ コウレイシャ ノ コウコウ ジョウタイ ト ヨウカイゴジョウタイ マタワ シボウ ハッセイ ト ノ カンレンセイ

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Abstract

<p> The purpose of this study was to investigate the association between the oral condition and occurrence of adverse health outcomes, such as disability or mortality, in the latter-stage elderly. Two hundred and ninety-five subjects enrolled in this study were residents aged 75-years-old in Tokushima City and joined the dental examination program. The results of a health questionnaire and dental examination obtained from each subject were used as the baseline data. In addition, developments of disability (support long-term care certification) or mortality were used as outcomes in longitudinal analysis.</p><p> Excluding 20 subjects who had a disability at the baseline, 275 subjects were followed up for 5 years, and 18.9% of the participants experienced subsequent disability or mortality. The cumulative incidence of disability or mortality increased significantly for items of “difficulties eating tough foods”, “medium/large plaque or food residue accumulation”, and “number of remaining teeth (<20)” in the Kaplan-Meier analysis. Cox proportional hazard analysis revealed that “difficulties eating tough foods”, “plaque or food residue accumulation”, “dentures cannot be used”, and “CPI=2 (deep periodontal pocket)” were significantly correlated with the occurrence of disability or mortality.</p><p> These results suggest that the oral frailty-related symptoms of “difficulties eating tough foods” predicted the occurrence of disability or mortality in the latter-stage elderly. In addition, there were associations between adverse health outcomes and poor oral hygiene, a poor periodontal condition, and unused dentures in the elderly.</p>

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