Development of and Recovery From Difficulty With Activities of Daily Living: An Analysis of National Data

Abstract

Background: National-level data are needed on predictors of mild physical impairment among older adults to assist policy makers with resource allocation. Method: We analyzed data on adults above age 64 from the Medicare Current Beneficiary Survey (MCBS) with no activity of daily living (ADL) difficulties at baseline ( n = 14,226). Five ADLs were measured annually and recovery was defined as regaining complete ADL function at follow-up. Results: The strongest correlates of ADL difficulty were use of antipsychotic medications (adjusted odds ratio [AOR] = 1.93, 95% confidence interval [CI] = 1.44 to 2.58), instrumental ADL difficulty (AOR = 1.90, 95% CI = 1.74 to 2.07), and fair-poor general health (AOR = 1.59, 95% CI = 1.42 to 1.78). Only the number of incident ADL difficulties was associated with recovery (AOR = 0.02, 95% CI = 0.01 to 0.02). Conclusion: Identifying factors associated with development of mild physical impairment could help direct patients toward preventive care programs to preempt decline in physical function.