Table 1.

Natural History of Atrial Fibrillation in HCM patients

	Year	Number of patients	AF prevalence (%)	Stroke incidence in AF patients (%)	Stroke incidence in whole cohort (%)	NYHA III-IV in AF patients (%)	Mortality risk in AF patients (OR)	References
Olivotto et al.	2001	480	22	7	N/A	7	3.7	[8]
Maron et al.	2002	900	21	23	6	N/A	N/A	[27]
Kubo et al.	2009	261	28	20	7	23	N/A	[9]
Tian et al.	2013	654	24	N/A	N/A	N/A	1.2	[13]
Guttmann et al.	2014	4815	12.5	8	3.6	N/A	N/A	[14]
Siontis et al.	2014	3673	18	10	5	46	1.5	[12]
Masri et al.	2015	1005	19	N/A	3	N/A	N/A	[4]

AF = Atrial Fibrillation; HCM = Hypertrophic Cardiomyopathy; OR = Odds Ratio.