Ministry of Internal Affairs and Communications, Statistics Bureau of Japan. (2023) Elderly people in Japan: Based on the results of statistics. https://www.stat.go.jp/data/topics/topi1321.html.

Ministry of Health, Labour and Welfare of Japan. (2024) Summary of vital statistics: trends in leading causes of death. https://www.mhlw.go.jp/toukei/saikin/hw/jinkou/geppo/nengai24/dl/h6.pdf

Komiya K, Rubin BK, Kadota J, Mukae H, Akaba T, Moro H, Aoki N, Tsukada H, Noguchi S, Shime N, Takahashi O, Kohno S. Prognostic implications of aspiration pneumonia in patients with community-acquired pneumonia: a systematic review with meta-analysis. Sci Rep. 2016;6:38097. https://doi.org/10.1038/srep38097.

Article  PubMed  PubMed Central  CAS  Google Scholar 

Tohara H, Saitoh E, Mays KA, Kuhlemeier K, Palmer JB. Three tests for predicting aspiration without videofluorography. Dysphagia. 2003;18:126–34. https://doi.org/10.1007/s00455-002-0095-y.

Article  PubMed  Google Scholar 

Kunieda K, Ohno T, Fujishima I, Hojo K, Morita T. Reliability and validity of a tool to measure the severity of dysphagia: the food intake LEVEL scale. J Pain Symptom Manage. 2013;46:201–6. https://doi.org/10.1016/j.jpainsymman.2012.07.020.

Article  PubMed  Google Scholar 

Fujishima I. Rehabilitation for swallowing disorders associated with stroke. Tokyo: Ishiyaku Publishers.Inc; 1993. pp. 81–6.

Google Scholar 

Serra-Prat M, Palomera M, Gomez C, Sar-Shalom D, Saiz A, Montoya JG, Navajas M, Palomera E, Clavé P. Oropharyngeal dysphagia as a risk factor for malnutrition and lower respiratory tract infection in independently living older persons: a population-based prospective study. Age Ageing. 2012;41:376–81. https://doi.org/10.1093/ageing/afs006.

Article  PubMed  Google Scholar 

Shiozu H, Higashijima M, Koga T. Association of sarcopenia with swallowing problems, related to nutrition and activities of daily living of elderly individuals. J Phys Ther Sci. 2023;27:393–6.

Article  Google Scholar 

Notomi S, Kitamura M, Horita N, Yamaguchi K, Harada T, Nishino T, Funakoshi S, Abe Y. Importance of feeding status evaluation in older patients undergoing hemodialysis. PLoS One. 2023;18:e0279199. https://doi.org/10.1371/journal.pone.0279199.

Article  PubMed  PubMed Central  CAS  Google Scholar 

Fujishima I. Dysphagia: etiology, symptoms, assessment and clinical management. Jpn J Rehabil Med. 2013;50:202–11. https://doi.org/10.2490/jjrmc.50.202.

Article  Google Scholar 

Crary MA, Carnaby Mann GD, Groher ME. Initial psychometric assessment of a functional oral intake scale for dysphagia in stroke patients. Arch Phys Med Rehabil. 2005;86:1516–20. https://doi.org/10.1016/j.apmr.2004.11.049.

Article  PubMed  Google Scholar 

Bortz WM 2nd. The disuse syndrome. West J Med. 1984;141:691–4.

Ardila Suárez EF, Escalada-Hernández P. Proposal of nursing diagnosis “adult disuse syndrome”: a conceptual derivation and integrative review. Int J Nurs Knowl. 2024;35:205–12. https://doi.org/10.1111/2047-3095.12440.

Article  PubMed  Google Scholar 

Suzuyama K, Yakushiji Y, Ogata A, Nishihara M, Eriguchi M, Kawaguchi A, Noguchi T, Nakajima J, Hara H. Total small vessel disease score and cerebro-cardiovascular events in healthy adults: The Kashima Scan Study. Int J Stroke. 2020;27:1030–9. https://doi.org/10.1177/1747493020908144.

Article  Google Scholar 

Shibata Y, Kawayama T, Muro S, Sugiura H, members of Japanese Respiratory Society COPD Guideline 6th Edition Editing Committee. Management goals and stable phase management of patients with chronic obstructive pulmonary disease in the Japanese Respiratory Society guideline for the management of chronic obstructive pulmonary disease 2022 (6th edition). Respir Investig. 2023;61:773–80. https://doi.org/10.1016/j.resinv.2023.08.007.

Article  PubMed  Google Scholar 

Koga Y, Deguchi S, Matsuo T, Suzuki A, Terashima G, Tajima T, Shibata Y, Sagara H. Underdiagnosis of COPD: the Japan COPD Real-World data epidemiological (CORE) study. Int J Chron Obstruct Pulmon Dis. 2024;19:1011–9. https://doi.org/10.2147/COPD.S450270.

Article  PubMed  PubMed Central  Google Scholar 

Logemann JA, Pauloski BR, Rademaker AW, Kahrilas PJ. Oropharyngeal swallow in younger and older women: videofluoroscopic analysis. J Speech Lang Hear Res. 2002;45:434–45. https://doi.org/10.1044/1092-4388(2002/034).

Article  PubMed  Google Scholar 

Logemann JA, Pauloski BR, Rademaker AW, Colangelo LA, Kahrilas PJ, Smith CH. Temporal and biomechanical characteristics of oropharyngeal swallow in younger and older men. J Speech Lang Hear Res. 2000;43:1264–74. https://doi.org/10.1044/jslhr.4305.1264.

Article  PubMed  CAS  Google Scholar 

Adams V, Mathisen B, Baines S, Lazarus C, Callister R. A systematic review and meta-analysis of measurements of tongue and hand strength and endurance using the Iowa oral performance instrument (IOPI). Dysphagia. 2013;28:350–69. https://doi.org/10.1007/s00455-013-9451-3.

Article  PubMed  Google Scholar 

Mozzanica F, Lorusso R, Robotti C, Zambon T, Corti P, Pizzorni N, Vanderwegen J, Schindler A. Effect of age, sex, bolus volume, and bolus consistency on whiteout duration in healthy subjects during FEES. Dysphagia. 2019;34:192–200. https://doi.org/10.1007/s00455-018-9961-0.

Article  PubMed  Google Scholar 

Kassem F, Masalha M, Biadsee A, Nageris B, Kagan R, Nachmani A. Analysis of sex-related differences in patients with dysphagia: using a videofluoroscopy. Isr Med Assoc J. 2022;7:464–9.

Google Scholar 

Namasivayam-MacDonald A, Lam B, Ma J, Affoo R. Prevalence, incidence, and predictors of self-reported swallowing difficulties in community-dwelling adults: a population-based study from the Canadian longitudinal study on aging (CLSA). Dysphagia. 2023;38:1406–20. https://doi.org/10.1007/s00455-023-10570-5.

Article  PubMed  Google Scholar 

Sella-Weiss O, Hershkovitz A, Brill S, Shahar DR. Association between swallowing function, malnutrition and frailty in community-dwelling older people. Clin Nutr ESPEN. 2021;45:476–85. https://doi.org/10.1016/j.clnesp.2021.06.028.

Article  PubMed  Google Scholar 

Matsuki T. Sex-related differences in oral conditions. Farmacia. 2011;47:228-232. https://doi.org/10.14894/faruawpsj.47.3_228.

Article  Google Scholar 

Desvarieux M, Schwahn C, Volzke H, Demmer RT, Lüdemann J, Kessler C, Jacobs DR, John U, Kocher T. Gender differences in the relationship between periodontal disease, tooth loss, and atherosclerosis. Stroke. 2004;35:2029–35. https://doi.org/10.1161/01.STR.0000136767.71518.36.

Article  PubMed  Google Scholar 

Haikola B, Oikarinen K, Söderholm AL, Remes-Lyly T, Sipilä K. Prevalence of edentulousness and related factors among elderly Finns. J Oral Rehabil. 2008;35:827–35. https://doi.org/10.1111/j.1365-2842.2008.01873.x.

Article  PubMed  CAS  Google Scholar 

Peres MA, Lalloo R. Tooth loss, denture wearing and implants: findings from the National study of adult oral health 2017-18. Aust Dent J. 2020;65(Suppl 1):S23–31. https://doi.org/10.1111/adj.12761.

Article  PubMed  Google Scholar 

Dye B, Thornton-Evans G, Li X, Iafolla T. Dental caries and tooth loss in adults in the united States, 2011–2012. NCHS Data Brief. 2015;197:197.

Google Scholar 

Public Health England. Oral health survey of older people, 2015–2016. National protocol version 2. London: Public Health England; 2015.

Google Scholar 

Yang RY, Yang AY, Chen YC, Lee SD, Lee SH, Chen JW. Association between dysphagia and frailty in older adults: a systematic review and meta-analysis. Nutrients. 2022;14:1812. https://doi.org/10.3390/nu14091812.

Article  PubMed  PubMed Central  Google Scholar 

Sakai K, Nakayama E, Yoneoka D, Sakata N, Iijima K, Tanaka T, Hayashi K, Sakuma K, Hoshino E. Association of oral function and dysphagia with frailty and sarcopenia in community-dwelling older adults: a systematic review and meta-analysis. Cells. 2022;11:2199. https://doi.org/10.3390/cells11142199.

Article  PubMed  PubMed Central  Google Scholar 

Clark S, Ebersole B. Understanding the role of speech language pathologists in managing dysphagia. Nurs. 2018;48:42–6. https://doi.org/10.1097/01.NURSE.0000547723.69610.20.

Article  Google Scholar 

McGinnes A, Easton S, Williams J, Neville J. The role of the community stroke rehabilitation nurse. Br J Nurs. 2010;19:1033–8. https://doi.org/10.12968/bjon.2010.19.16.78193.

Article  PubMed  Google Scholar 

Barnard SL. Nursing dysphagia screening for acute stroke patients in the emergency department. J Emerg Nurs. 2011;37:64–7. https://doi.org/10.1016/j.jen.2010.11.002.

Article  PubMed  Google Scholar 

Jamróz B, Sobol M, Chmielewska-Walczak J, Milewska M, Niemczyk K. The risk factors for silent aspiration: a retrospective case series and literature review. Int J Lang Commun Disord. 2024;59:1538–52. https://doi.org/10.1111/1460-6984.13013.

Article  PubMed