. Author manuscript; available in PMC: 2014 Oct 1.

Published in final edited form as: Can J Cardiol. 2013 Aug 30;29(10):1218–1226. doi: 10.1016/j.cjca.2013.07.672

Table 6.

Comparative Freedom from AF after FIRM-Blinded and FIRM-Guided Ablation For Prespecified Demographic Subgroups

Characteristic	Single Procedure Freedom from AF, FIRM-Blinded (Conventional)	Single Procedure Freedom from AF, FIRM-Guided	p
All patients	23/52 (44%)	17/19 (90%)	0.001
Obesity (BMI≥30)	14/32 (44%)	11/12 (92%)	0.004
Obstructive sleep apnea	10/26 (39%)	15/16 (94%)	<0.001
Persistent AF	12/32 (38%)	12/13 (92%)	0.001
HTN	16/37 (43%)	16/18 (89%)	0.001
Presence of RA sources	5/17 (29%)	12/13 (92%)	0.001
LA enlargement	19/37 (51%)	16/17 (94%)	0.002
DM	9/17 (53%)	6/8 (75%)	0.402
Systolic heart failure	4/6 (67%)	4/4 (100%)	0.467
Paroxysmal AF	11/20 (55%)	5/6 (83%)	0.352

Statistical differences calculated using Chi squared or Fisher’s exact tests.