Clinical Characteristics of the Study Population.

<p>AF: atrial fibrillation; LAD: left atrial diameter; LVEF: left ventricular ejection fraction; ERAF: early recurrence of atrial fibrillation; LRAF: late recurrence of atrial fibrillation; ACEI: ACE inhibitor; ARB: angiotensin receptor blocker; BB: beta block.</p><p>*Age was defined as the time the patient underwent left atrial catheter ablation.</p>†<p>Hypertension was diagnosed as a blood pressure higher than 140/90 mmHg.</p>‡<p>Diabetes was defined as ongoing therapy for diabetes or a fasting plasma glucose level of ≥7.0 mmol/L.