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Predictors for functional decline after an injurious fall: a population-based cohort study.

Stina Ek1,2, Debora Rizzuto3,4, Weili Xu3

  • 1Aging Research Center (ARC), Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden. stina.ek@ki.se.

Aging Clinical and Experimental Research
|November 8, 2020
PubMed
Summary

Injurious falls significantly worsen disability trajectories, especially for older adults living alone, inactive, or with poor self-rated health. These factors amplify the fall

Keywords:
ADLDisability trajectoriesIADLOlder adultsSNAC-K

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Area of Science:

  • Gerontology and Public Health
  • Epidemiology of Aging
  • Disability Studies

Background:

  • Functional decline after injurious falls is a significant concern in older adults.
  • Limited research exists on factors influencing long-term disability trajectories post-fall.
  • Understanding these modifying factors is crucial for effective interventions.

Purpose of the Study:

  • To investigate how sociodemographic and health-related factors influence the association between injurious falls and subsequent disability.
  • To identify specific characteristics that may exacerbate or mitigate the impact of falls on functional status.

Main Methods:

  • Analysis of 1426 community-dwelling older adults (≥60 years) from the Stockholm Gerontology Research and Aging (SNAC-K) cohort.
  • Functional status assessed over 12 years using limitations in activities of daily living (ADLs).
  • Injurious falls, sociodemographic, and health data collected at baseline; analyzed using linear-mixed effects models.

Main Results:

  • Living alone, physical inactivity, and poor self-rated health significantly increased the rate of disability progression after an injurious fall.
  • These factors showed a more pronounced negative impact on functional status among individuals who experienced falls compared to non-fallers.
  • Specific coefficients indicated the magnitude of disability increase associated with each factor (e.g., physical inactivity: β=0.587, p<0.001).

Conclusions:

  • Sociodemographic factors (living alone) and health behaviors (physical activity, self-rated health) substantially modify the long-term functional consequences of injurious falls.
  • Significant heterogeneity exists in long-term functional outcomes among fallers, highlighting the importance of individual characteristics.
  • Findings support a person-centered approach to care and secondary fall prevention strategies.