Fig. 3

Comparison of areas under the receiver operating characteristic curve (AUROC) for mechanical complications. Fist model (orange line) included only age and gender of patients, second model (blue line): age, gender, and type of joint disease (JointD): osteoarthritis or rheumatoid arthritis. Last model (green line); all these factors plus history of musculoskeletal comorbidity. Difference between AUROC was only significant for model 3 compared with model 1