Functional transitions among the elderly: patterns, predictors, and related hospital use

Area of Science:

• Gerontology
• Public Health
• Health Services Research

Background:

• Understanding long-term functional trajectories in older adults is crucial for healthcare planning.
• The relationship between functional status changes and healthcare utilization, particularly hospital use, requires further investigation.

Purpose of the Study:

• To describe 6-year rates of functional status change in the elderly.
• To identify correlates of functional change in older adults.
• To examine the association between functional status transitions and hospital use.

Main Methods:

• Utilized data from the Longitudinal Study on Aging (n=7527) and Medicare claims.
• Assessed functional status using a hierarchical measure including activities of daily living (ADLs) and instrumental activities of daily living (IADLs).
• Employed multinomial logistic regression to predict 1990 functional status, considering competing risks of institutionalization and death.

Main Results:

• 12% of individuals aged 70-79 with initial IADL impairments showed functional improvement over 6 years.
• Approximately 50% of initially independent individuals in the same age group maintained their independence.
• Age, baseline functioning, self-rated health, and comorbidity were significant predictors of 1990 functional status; both baseline functioning and change in functioning correlated with hospitalization.

Conclusions:

• The study confirms mixed long-term functional outcomes in the elderly, with decline being more prevalent than improvement.
• A clear link exists between declining functional status in older adults and increased hospital utilization.