Trends and Factors Affecting Functional Limitations on Activities of Daily Living Performance Among Korean Adults With Disabilities, 2008-2020: A Longitudinal Study

Abstract

Background: Loss of the ability to perform activities of daily living (ADLs) leads to negative health outcomes such as reduced quality of life, institutionalization, and mortality. In Korea, the proportion of older adults with disabilities is increasing along with rapid population aging. Therefore, providing a comprehensive approach to the prevention and management of ADL limitations in people with disabilities is necessary. This can be accomplished by understanding the trends and factors affecting these limitations over time. Purpose: This study was developed to examine the longitudinal trend and factors affecting ADL limitations over time among people with disabilities in Korea. Methods: Data from 346 people with disabilities in the 2008-2020 Korean Welfare Panel Study were used. Bivariate analysis and a Kendall trend test were performed to determine the longitudinal trends for ADL limitations, and multiple logistic regression was used to evaluate whether relevant variables could predict these limitations. Results: The prevalence of ADL limitations among people with disabilities increased by 16.5% over the 12 years of the study. The highest rate of increase in these limitations over time was found in people with mental disorders (27.8%), those over 65 years of age (27.3%), and those with depression (25.6%). In multiple logistic regression, the odds ratios of the variables were slightly different at each survey wave. However, severe disability and low educational level were consistently found to be associated with ADL limitations over time. Conclusions: The findings provide evidence of a significant relationship between level of disability and/or educational status and ADL limitations in people with disabilities in Korea. To prevent the development of ADL limitations in people with disabilities, comprehensive identification of longitudinal trends and factors affecting ADL limitations is necessary. Early intervention, including integrated services such as home rehabilitation services to prevent ADL limitations, especially for disabled people with severe disabilities and low educational levels, has the potential to delay ADL limitations.