Additional file 1 of Incremental prognostic value of left atrial and biventricular feature tracking in dilated cardiomyopathy: a long-term study

Additional file 1: Figure S1. A Receiver operating characteristic analysis of strain parameters for differentiation major adverse clinical event (MACE) in dilated cardiomyopathy (DCM). B Correlogram illustrates cardiovascular magnetic resonance (CMR) conventional index and strain parameters. Blue indicates a positive correlation and red indicates a negative correlation. The darker the color, the higher the correlation between the two variables. Figure S2. A Kaplan–Meier survival curves stratified by LVEF, LGE, and LAεe. B Events rate in different groups classified by LVEF, LGE, and LAεe. The LAεe was transformed into categories according to the optimal cutoff value calculated by receiver operating characteristic analysis. Figure S3. Bootstrapped distribution of estimated receiver operating characteristic (ROC) curve for predicting MACE in DCM patients. The mean optimal cutoff values for (A) LA εe, (B) LV GLS and (C) RV GLS were about 5.3%, -7.5%, and -11.8% respectively. Table S1. Evaluation of MR and TR. Table S2. Variance inflation factor measurements. Table S3. Inter- and intra- observer variability of strain parameters. Table S4. Comparison of CMR measurements between patients included and lost to follow-up.