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)