Figure 1
Title: Risk of AF according to LAEF in patients with normal size LA
Caption: X-axis displays follow up time, Y-axis displays the probability of staying AF free. The plot is stratified by high LAEF and low LAEF, with the cutoff being 47 %. The solid blue line represents the likelihood of staying AF free for the high LAEF subgroup and the light blue area is the 95 % confidence interval. The solid red line represents the likelihood of staying AF free for the low LAEF subgroup and the light red area is the 95 % confidence interval. The subgroup with high LAEF had a higher probability of staying AF free with a HR of 1.47, however it was not statistically significant (p value for log-rank=0.18). Data is plotted for patients with LAVI < 34 mL/m2 .
LAEF: Left atrium emptying fraction : AF: Atrial fibrillation. HR: Hazard Ratio