. Author manuscript; available in PMC: 2013 Feb 1.

Published in final edited form as: Circ Arrhythm Electrophysiol. 2011 Nov 17;5(1):8–14. doi: 10.1161/CIRCEP.111.963819

Table 1.

Patient Demographics

	CMP III (n=112)	CMP IV (n=100)	p - value
Mean Age (years)	51±10 (95% CI 20–77)	56±10 (95% CI28–75)	0.002*
Male gender	80%	76%	0.548
Median AF duration (years)	7.0 (IQR 3.2–13)	7.4±6.76 (IQR 2.4–10.0)	0.039
Paroxysmal AF	63%	31%	<0.001
NYHA class III or IV	5%	22%	<0.001
Failed previous catheter ablation	2%	40%	<0.001

CMP, Cox-Maze Procedure; NYHA, New York Heart Association; AF, Atrial Fibrillation; 95% CI, 95% confidence interval; IQR, interquartile range.