Table 1:

Summary of the Demographics and Clinical Characteristics of the 1064-proband HCM cohort

Clinical Characteristics	HCM Cohort
No. of individuals	1064
Sex, male/female	635/429
Age at diagnosis (years)	44.4 ± 18.6
Mean LV wall thickness (mm)	20.9 ± 5.9
Resting LVOTO (mmHg)	43.7 ± 43.5
Positive fam hx for HCM	29%
Positive fam hx for SCD	12%
Surgical myectomy	39%
Atrial fibrillation	21%
Ablation	9%
ICD	18%
Pacemaker	19%

LV, left ventricular; LVOTO, left ventricular outflow tract obstruction; fam hx, family history in a first degree relative; HCM, hypertrophic cardiomyopathy; SCD, sudden cardiac death/arrest; ICD, implantable cardioverter-defibrillator