表 2. Relationship between ablation strategies and success rates in different clusters of atrial fibrillation patients (6-month follow-up).

Relationship between ablation strategies and success rates in different clusters of atrial fibrillation patients (6-month follow-up)

不同房颤患者亚组消融策略与消融成功率的关系（术后6个月）

Different clusters	PVI (n=688)		Extensive ablation in addition to PVI (n=414) [reference]		Odds ratio (95% CI)
	Events/total	Ablation success rate (95% CI)	Events/total	Ablation success rate (95% CI)
CI: confidence interval; PVI: pulmonary veins isolation.
Younger age cluster	249/300	83.0% (78.2%-87.0%)	79/104	76.0% (66.4%-83.6%)	1.55 (0.90-2.66)
Elderly with high prevalence of chronic disease cluster	199/250	79.6% (74.0%-84.3%)	125/188	66.5% (59.2%-73.1%)	1.97 (1.28-3.03)
High prevalence of sinus node dysfunction cluster	71/94	75.5% (65.4%-83.6%)	43/66	65.1% (52.3%-76.2%)	1.65 (0.83-3.30)
Heart failure cluster	19/28	67.9% (47.6%-83.4%)	39/52	75.0% (60.8%-85.5%)	0.70 (0.26-1.94)
Coronary artery revascularization cluster	11/16	68.8% (41.5%-87.9%)	2/4	50.0% (9.2%-90.8%)	2.20 (0.24-20.40)