{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T14:28:34Z","timestamp":1789741714732,"version":"4.0.1"},"reference-count":26,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2017,3,28]],"date-time":"2017-03-28T00:00:00Z","timestamp":1490659200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["22592347"],"award-info":[{"award-number":["22592347"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["26463194"],"award-info":[{"award-number":["26463194"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["20590706"],"award-info":[{"award-number":["20590706"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["21590775"],"award-info":[{"award-number":["21590775"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["23617024"],"award-info":[{"award-number":["23617024"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007854","name":"School of Dentistry, Nihon University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007854","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005939","name":"Chiyoda Mutual Life Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100005939","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gerodontology"],"published-print":{"date-parts":[[2017,9]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>The aim of this study was to clarify whether perceived swallowing problems affect the life expectancy of very elderly individuals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Background<\/jats:title><jats:p>In an ageing society, oral function affects health status. In particular, a decline in swallowing function may increase the risk of various diseases, morbidity and malnutrition.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>We evaluated 526 elderly individuals aged \u226585\u00a0years. All participants completed a questionnaire and underwent oral, physical and mental health examinations. The comprehensive oral health assessment comprised a face\u2010to\u2010face interview that included a questionnaire on swallowing function. We estimated hazard ratios and 95% confidence intervals using the Cox proportional hazards model, adjusting for potential confounders between perceived swallowing problems and all\u2010cause mortality over a 3\u2010year period.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Over a 3\u2010year follow\u2010up period, 88 of 526 participants died and 68 participants complained of perceived swallowing problems. Perceived swallowing problems had statistically significant associations with physical status and function and nutrition. In the univariate analysis, perceived swallowing problems had statistically significant associations with an approximately 1.9\u2010fold higher risk of all\u2010cause mortality during the 3\u2010year period (<jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>: 1.89, 95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>: 1.14\u20103.14). In the multivariate analysis, the statistically significant association between perceived swallowing problems and all\u2010cause mortality remained after adjusting for various confounding factors (<jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>: 1.73, 95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>: 1.03\u20102.92).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Perceived swallowing disorders should be verified by a clinical examination, as they are associated with other health outcomes and increased all\u2010cause mortality.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ger.12265","type":"journal-article","created":{"date-parts":[[2017,3,28]],"date-time":"2017-03-28T05:12:38Z","timestamp":1490677958000},"page":"313-319","source":"Crossref","is-referenced-by-count":6,"title":["Perceived swallowing problems and mortality risk in very elderly people \u226585\u00a0years old: Results of the Tokyo Oldest Old Survey on Total Health study"],"prefix":"10.1111","volume":"34","author":[{"given":"Toshimitsu","family":"Iinuma","sequence":"first","affiliation":[{"name":"Department of Complete Denture Prosthodontics Nihon University School of Dentistry  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takumi","family":"Hirata","sequence":"additional","affiliation":[{"name":"Center for Supercentenarian Medical Research Keio University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasumichi","family":"Arai","sequence":"additional","affiliation":[{"name":"Center for Supercentenarian Medical Research Keio University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michiyo","family":"Takayama","sequence":"additional","affiliation":[{"name":"Center for Preventive Medicine Keio University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukiko","family":"Abe","sequence":"additional","affiliation":[{"name":"Center for Supercentenarian Medical Research Keio University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Motoko","family":"Fukumoto","sequence":"additional","affiliation":[{"name":"Department of Complete Denture Prosthodontics Nihon University School of Dentistry  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yusuke","family":"Fukui","sequence":"additional","affiliation":[{"name":"Department of Complete Denture Prosthodontics Nihon University School of Dentistry  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nobuhito","family":"Gionhaku","sequence":"additional","affiliation":[{"name":"Department of Complete Denture Prosthodontics Nihon University School of Dentistry  Tokyo 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