The left atrial diameter (millimeter), albumin (gram per Liter), type of Af, duration of RFCA procedure (hours), duration of Af attack time (months), whether combined with other arrhythmias and ablation energy were all selected by the Lasso regression; thus, we only listed the weights accounting for one time, as shown in Table 2. The gene discussed is ALB; the disease is cardiac arrhythmia.