| Objective To understand the quality of life of elderly patients with knee osteoarthritis combined with osteoporosis, and to explore its influencing factors. Methods A questionnaire survey was conducted in 456 elderly patients with knee osteoarthritis combined with osteoporosis. The data of quality of life were collected and analyzed statistically. Results There were significant differences in the quality of life scores between different sexes, age, occupation, living conditions, duration of disease, WOMAC assessment, knee joint pain, and social support scores. Multivariate logistic regression analysis showed that the WOMAC index (OR=0.595, 95% CI = 0.102-0.896), knee pain (OR=0.168, 95% CI=0.014-0.805) and social support score (OR=4.601, 95% CI=2.210-18.102) were important factors for the quality of life of elderly patients with osteoarthritis combined with osteoporosis. Conclusion WOMAC index and the higher the degree of knee pain, the lower the degree of social support, the lower the quality of life in patients with knee osteoarthritis combined with osteoporosis. Such groups of patients should receive attention for prevention and treatment. |