a clear trendP =0.075
When comparing all 3 months of each year, only a clear trend was detected towards LVEF<50% for the COVID-19 period ( P =0.075, df=4, Pearson’s chi-square=6.342) ( Figure 1B ).
When comparing all 3 months of each year, only a clear trend was detected towards LVEF<50% for the COVID-19 period ( P =0.075, df=4, Pearson’s chi-square=6.342) ( Figure 1B ).