Table 5 .

The efficacy of antiarrhythmic drugs at maintaining sinus rhythm post cardioversion from AF.

	Recurrence of atrial fibrillation (number of events/total)
Drug	Drug	Control	Odds Ratio (95% confidence interval)	p-value
Quinidine	741/1106	417/518	0.51 (0.40–0.65)	< .001
Flecainide	31/71	56/78	0.31 (0.16–0.60)	< 0.01
Propafenone	376/720	276/378	0.37 (0.28–0.48)	< 0.001
Amiodarone	200/428	209/245	0.19 (0.14–0.27)	< 0.001
Dofetilide	448/752	363/431	0.30 (0.23–0.39)	< 0.001
Dronedarone	648/982	353/461	0.59 (0.46–0.75)	< 0.001
Sotalol	1197/1791	955/1211	0.51 (0.43–0.60)	< 0.001

Source: Adapted from Lafuente-Lafuente et al. ⁴⁴