The Correlation Between the Cumulative Illness Rating Scale and the Knee Injury and Osteoarthritis Outcome Score in Knee Osteoarthritis Patients

Objective: This research aimed to explore the correlation between Cumulative Illness Rating Scale (CIRS) and physical disability among individuals suffering from symptomatic knee osteoarthritis (OA). Materials and Methods: In this cross-sectional study, 89 individuals diagnosed with knee OA were enrolled. The severity of OA was assessed radiologically using the Kellgren-Lawrence staging method. The Knee Injury and OA Outcome Score was utilized to assess pain intensity, symptoms, daily functional capacity, engagement in sports/recreation, and knee-related quality of life (QoL). The CIRS scores for all participants were calculated by the same researcher. Throughout this process, both the Kellgren-Lawrence staging and CIRS calculations were overseen by the same researcher to maintain consistency. Results: Seventy patients (78.7%) were female. 19 were male (21.3%). The mean age was 56.8 years. The mean body mass index was 30.1kg/[m.sup.2]. Knee OA was bilateral in 81 patients (91.1%). The radiological severity of knee OA was stage II or III in 73 subjects (82.02 %). The mean Knee Injury and OA Outcome Score pain severity, symptoms, activities of daily living, sport/recreation, and knee- related QoL scores were 55.4, 19.05, 59.8, 34.2, and 54.7, respectively. A significant correlation was observed between CIRS score, and KOOS Symptoms and KOOS QoL (p