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Denture Wearing Moderates the Association between Aspiration Risk and Incident Pneumonia in Older Nursing Home Residents: A Prospective Cohort Study

Author

Listed:
  • Kenji Takeuchi

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
    OBT Research Center, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

  • Maya Izumi

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
    Department of Oral Functional Management, School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan)

  • Michiko Furuta

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

  • Toru Takeshita

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
    OBT Research Center, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

  • Yukie Shibata

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

  • Shinya Kageyama

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

  • Yuka Okabe

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

  • Sumio Akifusa

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
    Department of Oral Functional Management, School of Oral Health Sciences, Faculty of Dentistry, Kyushu Dental University, Fukuoka 803-8580, Japan)

  • Seijun Ganaha

    (Kizuna-kai, Aso-kizuna Dental Clinic, Kumamoto 869-2612, Japan)

  • Yoshihisa Yamashita

    (Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan)

Abstract

Aspiration is increasingly recognized as a major risk for pneumonia, but a potential link between wearing dentures and incident pneumonia with aspiration risk is unclear. The aim of this study was to investigate whether denture wearing moderates the association between aspiration risk and incident pneumonia in older adults. We used prospective cohort data of 156 residents aged >70 years from eight nursing homes in Aso, Japan. Aspiration risk was evaluated using the modified water swallowing test. During a 1-year follow-up (2014 to 2015), information on incident pneumonia was obtained from nursing home medical records. During follow-up, pneumonia developed in 7.1% of participants. In the multivariate-adjusted Cox proportional hazards model, after adjusting for potential confounders, aspiration risk was independently associated with a 4.4-fold higher hazard ratio (HR) of incident pneumonia (95% confidence interval, CI, 1.16–16.43). The difference in the risk of incident pneumonia between subjects with aspiration risk who were wearing dentures and those not at risk of aspiration was not significant, whereas those with aspiration risk without dentures had a 7.3-fold higher HR of incident pneumonia than those not at risk of aspiration (95% CI, 1.02–52.63). Denture wearing might partially moderate the increased risk of incident pneumonia associated with aspiration risk.

Suggested Citation

  • Kenji Takeuchi & Maya Izumi & Michiko Furuta & Toru Takeshita & Yukie Shibata & Shinya Kageyama & Yuka Okabe & Sumio Akifusa & Seijun Ganaha & Yoshihisa Yamashita, 2019. "Denture Wearing Moderates the Association between Aspiration Risk and Incident Pneumonia in Older Nursing Home Residents: A Prospective Cohort Study," IJERPH, MDPI, vol. 16(4), pages 1-8, February.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:4:p:554-:d:205949
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    References listed on IDEAS

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    1. Toshie Manabe & Shinji Teramoto & Nanako Tamiya & Jiro Okochi & Nobuyuki Hizawa, 2015. "Risk Factors for Aspiration Pneumonia in Older Adults," PLOS ONE, Public Library of Science, vol. 10(10), pages 1-12, October.
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