Fig. 3

Establishment and validation of the RA mortality risk model. A. LASSO regression nomogram based on age, race, sex, and dietary component scores. B. Kaplan-Meier survival analysis for high-risk and low-risk groups identified by LASSO regression. C.ROC curve for evaluating the predictive power for all-cause mortality among patients with RA of the nomogram model. LASSO, least absolute shrinkage and selection operator; ROC, receiver operating characteristic