Figure 2

The changes of left ventricular ejection fraction (ΔLVEF) at 3 months (3 m), 6 months (6 m), 9 months (9 m), 12 months (12 m) and 15 months (15 m) versus baseline. Bars represent mean ± SD. ^#p < 0.05, ^##p < 0.01 and ^###p < 0.001 comparing group N vs. group R at the same time point. *p < 0.05, **p < 0.01 and ***p < 0.001 within each group vs. baseline with a repeated ANOVA followed by Tukey’s test.