The Trajectories and Determinants of Medical Service Utilization, Subjective Health Status, and Life Satisfaction in Middle-Aged and Elderly People with Chronic Disease

Abstract

This study aimed to identify the trajectory of changes in medical service utilization, subjective health status, and life satisfaction of middle-aged and elderly people with chronic diseases and examine the determinants. Using data from the 5th to the 7th years of the Korean Longitudinal Study of Ageing, 3,873 people aged over 45 who were diagnosed with chronic diseases were studied. Multivariate latent growth model analysis was conducted to verify the patterns, interrelationships, and determinants of the trajectory of changes. The medical service utilization and life satisfaction of middle-aged and elderly people with chronic diseases showed a significant increase over time, while subjective health status showed a significant decrease. The common determinants of the initial values of medical service utilization, subjective health status, and life satisfaction were subjective class consciousness, the depression level, the pain level, the number of chronic diseases, and the activities of daily living (ADL). The common determinant of the rate of change was the degree of pain. The determinants of trajectory change are diverse, and in particular, participation in economic activities continuously increases subjective health status and life satisfaction. Therefore, in order to improve the quality of life of middle-aged and elderly people suffering from chronic diseases, multifaceted interventions are needed.