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Short-Term Disability Fluctuations in Late Life.

ABSTRACT: OBJECTIVES:Late-life disability is highly dynamic but within-person short-term fluctuations have not been assessed previously. We analyze how substantial such late-life disability fluctuations are and whether they are associated with time-to-death, long-term disability trajectories, frailty, and sociodemographics. METHODS:Monthly survey data (Precipitating Events Project Study) on activities of daily living/instrumental activities of daily living (ADL/IADL) disability (0-9) in the last years of life from 642 deceased respondents providing 56,308 observations were analyzed with a two-step approach. Observation-level residuals extracted from a Poisson mixed regression model (first step), which depict vertical short-term fluctuations from individual long-term trajectories, were analyzed with a linear mixed regression model (second step). RESULTS:Short-term disability fluctuations amounted to about one ADL/IADL limitation, increased in the last 4 years of life, and were closely associated with disability increases. Associations with frailty or sociodemographics characteristics were absent except for living alone. DISCUSSION:Short-term disability fluctuations in late life were substantial, were linked to mortality-related processes, and represent a concomitant feature of disability increases in late life.

SUBMITTER: Stolz E

PROVIDER: S-EPMC6777769 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Short-Term Disability Fluctuations in Late Life.

Stolz Erwin E Gill Thomas M TM Mayerl Hannes H Freidl Wolfgang W

The journals of gerontology. Series B, Psychological sciences and social sciences 20191001 8

<h4>Objectives</h4>Late-life disability is highly dynamic but within-person short-term fluctuations have not been assessed previously. We analyze how substantial such late-life disability fluctuations are and whether they are associated with time-to-death, long-term disability trajectories, frailty, and sociodemographics.<h4>Methods</h4>Monthly survey data (Precipitating Events Project Study) on activities of daily living/instrumental activities of daily living (ADL/IADL) disability (0-9) in the ...[more]

PMID: 31298701

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Dataset Information

Short-Term Disability Fluctuations in Late Life.

Publications

Short-Term Disability Fluctuations in Late Life.

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