Hubungan Usia Dengan Derajat Disabilitas Fungsional Pada Pasien Osteoarthritis Lutut di RSUP Haji Medan

Abstract

Background: Knee osteoarthritis is a degenerative joint disease commonly occurring in older adults and a leading cause of functional disability. Age plays a significant role in determining symptom severity and mobility decline. This study aimed to analyze the relationship between age and the degree of functional disability in knee osteoarthritis patients at RSUP Haji Medan. Methods: An observational analytic study with a cross-sectional approach was conducted using total sampling of 48 respondents at the Rehabilitation Medicine Polyclinic of RSUP Haji Medan between October and November 2025. Functional disability was assessed using the WOMAC questionnaire and analyzed using Pearson correlation and simple linear regression. Results: A significant positive correlation was found between age and the degree of functional disability (r = 0.525; p = 0.000). Simple linear regression analysis showed a regression coefficient of 0.886. Conclusion: Older age is significantly associated with higher degrees of functional disability in knee osteoarthritis patients, highlighting the necessity for early targeted rehabilitation interventions.