. Author manuscript; available in PMC: 2012 Jan 1.

Published in final edited form as: J Cardiovasc Electrophysiol. 2010 Aug 30;22(1):16–22. doi: 10.1111/j.1540-8167.2010.01876.x

TABLE 1.

Characteristics of 120 Patients with Preablation Quantification of Left Atrial Fibrosis

	Utah Stage 1 (<5%) (N = 10)	Utah Stage 2 (5–20%) (N = 71)	Utah Stage 3 (20–35%) (N = 23)	Utah Stage 4 (>35%) (N = 16)	P-value
Age (years)	58 ± 14	62 ± 13	67 ± 13	68 ± 8	ns
HTN (%)	50.0	53.5	56.5	43.8	ns
Diabetes (%)	10	7.0	21.7	6.3	ns
Coronary disease (%)	30	12.7	13.0	18.8	ns
CHF (%)	10	5.6	4.3	12.5	ns
LV EF (%)	57.2 ± 3.5	51.8 ± 9.5	49.7 ± 11.4	44.8 ± 13.2	ns
Paroxysmal/persistent AF (%)	60/40	45/55	35/65	25/75	ns

ns = nonsignificant.