Back to Search
Start Over
Differential sensitivity of intraindividual variability dispersion and global cognition in the prediction of functional outcomes and mortality in precariously housed and homeless adults.
- Source :
-
The Clinical neuropsychologist [Clin Neuropsychol] 2024 Mar 05, pp. 1-24. Date of Electronic Publication: 2024 Mar 05. - Publication Year :
- 2024
- Publisher :
- Ahead of Print
-
Abstract
- Objective: To examine cognitive intraindividual variability (IIV) dispersion as a predictor of everyday functioning and mortality in persons who are homeless or precariously housed.<br />Method: Participants were 407 community-dwelling adults, followed for up to 13 years. Neurocognition was assessed at baseline and IIV dispersion was derived using a battery of standardized tests. Functional outcomes (social, physical) were obtained at baseline and last follow-up. Mortality was confirmed with Coroner's reports and hospital records ( N = 103 deaths). Linear regressions were used to predict current social and physical functioning from IIV dispersion. Repeated measures Analysis of Covariance were used to predict long-term change in functioning. Cox regression models examined the relation between IIV dispersion and mortality. Covariates included global cognition (i.e. mean-level performance), age, education, and physical comorbidities.<br />Results: Higher IIV dispersion predicted poorer current physical functioning ( B = -0.46 p = .010), while higher global cognition predicted better current ( B = 0.21, p = .015) and change in social functioning over a period of up to 13 years ( F = 4.23, p = .040). Global cognition, but not IIV dispersion, predicted mortality in individuals under 55 years old (HR = 0.50, p = .013).<br />Conclusions: Our findings suggest that indices of neurocognitive functioning (i.e. IIV dispersion and global cognition) may be differentially related to discrete dimensions of functional outcomes in an at-risk population. IIV dispersion may be a complimentary marker of emergent physical health dysfunction in precariously housed adults and may be best used in conjunction with traditional neuropsychological indices.
Details
- Language :
- English
- ISSN :
- 1744-4144
- Database :
- MEDLINE
- Journal :
- The Clinical neuropsychologist
- Publication Type :
- Academic Journal
- Accession number :
- 38444068
- Full Text :
- https://doi.org/10.1080/13854046.2024.2325167