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- Title
Early strong predictors of decline in instrumental activities of daily living in community-dwelling older Japanese people.
- Authors
Masugi, Yohei; Kawai, Hisashi; Ejiri, Manami; Hirano, Hirohiko; Fujiwara, Yoshinori; Tanaka, Tomoki; Iijima, Katsuya; Inomata, Takashi; Obuchi, Shuichi P.
- Abstract
Objective: Our aim is to determine the strong predictors of the onset of instrumental activities of daily living (IADL) decline in community-dwelling older people. Design: A prospective cohort study with a two-year follow-up. Setting: Kashiwa City, Chiba Prefecture, Japan and Toshima Ward, Tokyo Metropolitan, Japan. Participants: The data were acquired from two cohorts. The final sample comprised 1,523 community-dwelling older people aged 65–94 years (681 men, 842 women). They were individuals who were independent in IADL at baseline and participated in follow-up IADL assessments two years later. Measurements: At baseline, comprehensive assessments were performed including: health interview, gait function, hand-grip strength, skeletal muscle mass, balance function, oral function, dietary lifestyle, cognitive function, quality of life, mental status, and social network. When the two-year follow-up was performed, IADL declines were observed in 53 out of 1,523 people. The association of each Z-transformed parameter with the occurrence of IADL decline was examined by employing a binominal logistic regression model adjusting for age, gender, body weight, body height, and medical history. An odds ratio (OR) and a 95% confidence interval were calculated and compared between different parameters. Results: A decrease in walking speed and one-legged stance time, whereas an increased timed up & go test time was associated with significant ORs for the occurrence of IADL decline. Conclusion: Gait-related parameters appear to be the strong predictors of the onset of IADL decline in community-dwelling older people.
- Subjects
JAPAN; FRAIL elderly; OLDER people; ACTIVITIES of daily living; JAPANESE people; WALKING speed; STATURE
- Publication
PLoS ONE, 2022, Vol 17, Issue 4, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0266614