Fig. 1From: Clinical characteristics and prognosis in systemic lupus erythematosus-associated pulmonary arterial hypertension based on consensus clustering and risk prediction modelThe flow chart of this study. SLE, systemic lupus erythematosus; PAH, pulmonary arterial hypertension; TTE, transthoracic echocardiography; RHC, right heart catheterization; K-M, Kaplan–Meier; IPAH, idiopathic PAH, LASSO, the least absolute shrinkage and selection operator; DCA, decision curve analysisBack to article page