Table 4.

Individual risk factors and risk modifiers in HCM patients with or without HighT2

	Total (n = 109)	HighT2 present (n = 29)	HighT2 absent (n = 80)	p value
Binary risk factors
Family history of SCD	12 (11)	4 (14)	8 (10)	.73
Syncope	5 (5)	2 (7)	3 (4)	.61
Non-sustained VT	17 (16)	6 (21)	11 (14)	.38
Abnormal BP response	13 (12)	7 (24)	6 (8)	.04
Extreme LV hypertrophy	3 (3)	1 (3)	2 (3)	1.0
Continuous risk factors
Age (years)	54 ± 15	52 ± 14	55 ± 15	.29
Maximal wall thickness (mm)	17 (14–20)	19 (17–23)	16 (13–20)	< .001
Left atrial diameter (mm)	43 (39–50)	43 (40–54)	43 (39–48)	.26
LV outflow tract gradient (mmHg)	8 (6–23)	8 (5–21)	8 (6–25)	.74
Risk modifiers
LV outflow tract gradient ≥ 30 mmHg	21 (19)	5 (17)	16 (20)	.75
Extensive LGE (≥ 15% of LV mass)	10 (9)	8 (28)	2 (3)	< .001

Data are presented as means ± standard deviations, medians (interquartile ranges) or numbers (percentages)

HighT2 high signal intensity on T2-weighted imaging, SCD sudden cardiac death, VT ventricular tachycardia, BP blood pressure, LV left ventricle, LGE late gadolinium enhancement