IMPACT OF KNEE OSTEOARTHRITIS ON QUALITY OF LIFE AND PHYSICAL ACTIVITY LEVELS AMONG ELDERLY OUTPATIENTS

Background: Knee osteoarthritis (OA) is a prevalent degenerative joint disease, particularly affecting the elderly, and significantly impacts both quality of life (QoL) and physical activity (PA) levels. The disease, marked by pain, joint stiffness, and mobility limitations, can exacerbate physical and psychological distress in older adults. Despite its widespread impact, there is limited research on how knee OA affects these dimensions among elderly populations in Nigeria. Aims: This study aimed to evaluate the impact of knee osteoarthritis on QoL and physical activity levels among elderly outpatients at the University of Benin Teaching Hospital. Methods: A cross-sectional descriptive study was conducted on 50 elderly patients (aged 60 and above) diagnosed with knee osteoarthritis. QoL was measured using the WHOQOL-BREF, physical activity levels were assessed using the Physical Activity Scale for the Elderly (PASE), and pain intensity was evaluated with the Numerical Pain Rating Scale (NPRS). Data were analyzed using descriptive and inferential statistics, including chi-square tests and MannWhitney U tests. Results: The majority of respondents (64%) reported low QoL, with high levels of physical activity observed in 88% of participants. Pain intensity varied, with 40% of participants experiencing severe pain. No significant differences were found between male and female respondents in terms of QoL, physical activity, or pain intensity ( p=0.565; p=0.230; p=0.012 respectively). Furthermore, no no significant association were found between age and each of QoL ,physical activity levels and pain intensity(p=0.409;p=0.620;p=0.059 respectively) Conclusion: This study revealed that elderly patients with knee osteoarthritis experience low quality of life and generally high physical activity levels, with mild-to-severe variations in pain intensity. Furthermore, no statistically significant associations were found between age and each of QoL, physical activity and pain intensity Keywords: Knee osteoarthritis, elderly, quality of life, physical activity, pain.