Analysis of the success rate of conversion using ibutilide administration in radiofrequency catheter ablation of persistent atrial fibrillation and its effects on postoperative recurrence

Table 5 Factors influencing patients’ survival time

	Risk ratio(HR)	95%CI	P
Ibutilide	0.756	0.444–1.287	0.303
Duration of atrial fibrillation ≥ 15 months	2.426	1.355–4.343	0.003*
Gender	1.181	0.659–2.115	0.577
Heart failure	0.926	0.369–2.238	0.871
Hypertension	1.000	0.583–1.716	1.000
Diabetes	0.692	0.327–1.465	0.336
Coronary heart disease	1.039	0.470–2.296	0.925
Stroke history	1.870	0.882–3.966	0.103

*P > 0.05 indicates that the difference is not statistically significant, and P < 0.05 indicates that the difference is statistically significant

ISSN: 1471-2261