RESUMEN
ABSTRACTOBJECTIVE: To assess the quality of life of knee osteoarthritis patients using the SF-36 questionnaireMETHODS: Cross-sec-tional study with 93 knee osteoarthritis patients. The sample was categorized according to Ahlbӓck score. All individuals were interviewed with the SF-36 questionnaireRESULTS: The main finding of the study is related to the association of edu-cation level with the functional capacity, functional limitation and pain. Patients with higher education level had better functional capacity when they were compared to patients with basic level of educationCONCLUSION: Individuals with osteoarthritis have a low perception of their quality of life in functional capacity, functional limitation and pain. There is a strong association between low level of education and low perception of quality of life. Level of Evidence IV, Clinical Case Series.