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. 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 2.

Number of localized sources in patient subgroups

Variables Number of Stable AF
Sources
Number of Rotors Number of Focal
Sources
All 1.9±1.2 1.6±1.1 0.3±0.6
Obstructive sleep apnea 2.3±1.2 1.9±1.2 0.4±0.7
LA enlargement 2.1±1.3 1.8±1.2 0.3±0.6
Systolic heart failure 2.9±1.7 2.6±1.4 0.3±0.5
Obesity 2.1±1.4 1.8±1.2 0.3±0.6
Persistent AF 2.1±1.3 1.9±1.2 0.2±0.5
Hypertension 2.0±1.2 1.6±1.2 0.4±0.6
Diabetes Mellitus 2.1±1.5 1.6±1.4 0.5±0.8
Hyperlipidemia 2.1±1.3 1.7±1.2 0.4±0.6

Statistical analyses were done using paired samples t-test. The number of stable AF rotors was significantly higher than the number of focal sources for all subgroups (P<0.05 for each)