ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2023
Development and Validation of the Disability Index Among Older Adults.
Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Article
- Trajectories of physical functioning and its implication for all-cause mortality in Chinese older people: a large-scale national longitudinal study.Journal of global health · 2025Article
- Longitudinal trajectories of disability index and associated factors in Chinese older adults.The journal of nutrition, health & aging · 2025Article
- Trend of electroconvulsive therapy use and its relationships with clinical characteristics from a large psychiatric center in China.Frontiers in psychiatry · 2025Article
- [Factors associated with the care needs of the older adults based on different disability levels].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2024Article
- Development of the cMIND Diet and Its Association with Cognitive Impairment in Older Chinese People.The journal of nutrition, health & aging · 2022Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundWith the rapid population aging, the challenge to provide care for disabled older adults is becoming bigger. This study aims to develop the Disability Index (DI) to assess disability to indicate care needs, and we evaluated the reliability and validity of the DI among older adults aged 65-105.
methodsA total of 12 559 older adults (54.0% women; mean age = 84.3; SD = 11.2) from 22 provinces in China were investigated in 2017-2018. We developed the 21-item DI covering 4 subdomains, including Activities of Daily Living (ADL), Instrumental Activities of Daily Living (IADL), physical performance, and cognitive function. Cronbach's alpha was used to determine internal consistency. The convergent and divergent validity were assessed by Spearman rank order correlation coefficients and Pearson correlation coefficients. The known-group validity was assessed by Mann-Whitney U tests. The concurrent validity was assessed by the area under the receiver operating characteristic curve (AUC).
resultsIn the total sample, the internal consistency of the full DI and its subdomains were satisfactory with Cronbach's alpha ≥0.70; the convergent and divergent validity of the 4 subdomains were supported by all the alternative measures; the known-group validity of the full DI and its subdomains were supported by clear discriminative ability; and the concurrent validity of the full DI was supported with all the AUCs ≥0.70. The reliability and validity of the full DI and its subdomains were additionally supported by age subgroups and sex subgroups.
conclusionsThe DI is a reliable and valid instrument to assess disability status among older adults.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.