Abstract: Objective To investigate the osteoarthritis related knowledge, attitude, and behavior of knee osteoarthritis population, and provide basis for effective prevention and treatment of knee osteoarthritis. Methods A sample of patients with knee osteoarthritis who were treated in the outpatient department of a hospital in Shanghai from March 2020 to March 2023 were selected for this study. A self-designed questionnaire was used to investigate their osteoarthritis related knowledge, attitude, and behavior, and the status of knowledge, attitude, and behavior of osteoarthritis and its influencing factors were analyzed. Results Among patients with knee osteoarthritis, the average score of osteoarthritis knowledge dimension was （7.46±0.61）, and the pass rate was 77.45% （7 692/9 931）; the average score of attitude dimension was （5.26±0.33）, and the pass rate was 84.82% （8 423/9 931）; the average score of behavioral dimension was （3.78±0.32）, and the pass rate was 71.57% （7 108/9 931）. The results of multiple linear regression analysis showed that age （β'=-0.149）, educational level （β'=0.228）, access to medical knowledge （β'=0.185）, and acceptance of health education （β'=0.070） were the factors affecting the score of knowledge dimension. Age （β'=-0.150）, acceptance of health education （β'=0.874）, and knowledge dimension score （β'=0.925） were the factors affecting the score of attitude dimension. Age （β'=0.076）, educational level （β'=0.290）, acceptance of health education （β'=0.571）, knowledge dimension score （β'=0.455）, attitude dimension score （β'=0.476） were the factors affecting the score of behavioral dimension. Conclusions The knowledge and attitude levels of knee osteoarthritis population are relatively high, while the behavior level is relatively low. Age, educational level, access to medical knowledge, and health education are the influencing factors of osteoarthritis related knowledge, attitude, and behavior in knee osteoarthritis population.

Key words: Knee osteoarthritis, Knowledge, attitude, and behavior, Questionnaire survey