Prevalence and Progression of Cognitive Impairment in Atrial Fibrillation Patients after Treatment with Catheter Ablation or Drug Therapy

Table 1

Study population.

Population	AF group (aged 68.8 ± 7.0 years) n = 21		AF/HF group (aged 67.3 ± 7.8 years) n = 24
	Drug therapy	Catheter ablation	Drug therapy	Catheter ablation
All	9	12	8	16
Females	4	5	0	3
Males	5	7	8	13
Mean time between randomization and catheter ablation to first interview (months)	16.8 ± 11		28.3 ± 18.4
Mean time between first and second interview (months)	5.9 ± 2.3		5.7 ± 1.6

AF = atrial fibrillation, HF = heart failure, and SD = standard deviation.