title: Relationships between each category of 25-item frailty risk assessment (Kihon Checklist) and newly certified older adults under Long-Term Care Insurance: A 24-month follow-up study in a rural community in Japan.
abstract: OBJECTIVE
  The 25-item Kihon Checklist (KCL) is the official self-administered questionnaire tool to screen frail older adults, consisting of seven categories: physical strength, nutritional status, oral function, houseboundness, cognitive function, depression risk and a score of more than 9 out of 1-20 items. The aim of the present study was to evaluate the relationships between each category of the KCL and newly certified cases under the Long-Term Care Insurance (LTCI) in Japan during 24 months.
  
  
  METHODS
  The study population consisted of 883 community-dwelling adults aged 65 years or older uncertified by LTCI completing a questionnaire, which included the KCL and scales of basic/advanced activities of daily living (ADL), quality of life (QOL), and depressive symptoms. The participants were categorized into the risk or non-risk group depending on the official criteria of each KCL category. The outcome was the incidence of newly certified cases by LTCI during 24 months. The difference between the risk and non-risk group was analyzed by Cox regression hazard models.
  
  
  RESULTS
  Scores in basic/advanced ADL and QOL were higher, and the score in the geriatric depression scale was lower in the non-risk than the risk group in KCL criteria. In men, the incidence of newly certified cases was higher in the risk group of the physical strength category after adjusting for age and the other categories of the KCL.
  
  
  CONCLUSIONS
  The physical strength category in men was the only significant predictor of the incidence of newly certified cases by LTCI. Further studies are required to improve the assessment item of cognitive function in KCL under LTCI.
authors.affiliation: School of Public Health, Kyoto University, Kyoto, Japan.
authors.forename: Eriko
authors.initials: E
authors.lastname: Fukutomi
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Kiyohito
authors.initials: K
authors.lastname: Okumiya
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Taizo
authors.initials: T
authors.lastname: Wada
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Ryota
authors.initials: R
authors.lastname: Sakamoto
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Ishimoto
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Yumi
authors.initials: Y
authors.lastname: Kimura
authors.affiliation: School of Public Health, Kyoto University, Kyoto, Japan.
authors.forename: Wen-Ling
authors.initials: WL
authors.lastname: Chen
authors.affiliation: School of Public Health, Kyoto University, Kyoto, Japan.
authors.forename: Hissei
authors.initials: H
authors.lastname: Imai
authors.affiliation: College of Nursing, Kanto Gakuin University, Tokyo, Japan.
authors.forename: Yoriko
authors.initials: Y
authors.lastname: Kasahara
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Michiko
authors.initials: M
authors.lastname: Fujisawa
authors.affiliation: Tokyo Women's Medical University, Tokyo, Japan.
authors.forename: Kuniaki
authors.initials: K
authors.lastname: Otsuka
authors.affiliation: School of Public Health, Kyoto University, Kyoto, Japan.|Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: Kozo
authors.initials: K
authors.lastname: Matsubayashi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D057189:Checklist / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D016330:Frail Elderly / Q000523:psychology / Q000706:statistics & numerical data*; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D007353:Insurance, Long-Term Care / Q000706:statistics & numerical data*; D007564:Japan / Q000453:epidemiology; D008297:Male; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012424:Rural Population; D013997:Time Factors
keywords: Cox regression hazard model; Japan; Kihon Checklist; community-dwelling elderly; comprehensive geriatric assessment