Table 4

Baseline risk factors of patients with and without primary endpoint

VariablePatients without SCD or ICD therapy, n=716 (97.8%)Patients with
SCD or ICD therapy, n=16 (2.2%)
P value
Risk factor
 Age, years56.1±14.356.4±15.00.858
 Sex, male543 (76.1)8 (50.0)0.036
 Maximal LV wall thickness, mm18.3±3.718.7±2.80.621
 LA size, mm44.1±6.748.6±8.20.009
 Peak LVOT pressure gradient, mm Hg15.2±25.515.8±26.70.920
 LV ejection fraction, %64.6±6.659.8±6.60.004
 LV ejection fraction <50%10 (1.4)1 (6.2)0.218
 Family history of SCD85 (11.9)6 (37.5)0.007
 Non-sustained ventricular tachycardia136 (19.0)8 (50.0)0.006
 Unexplained syncope93 (13.0)5 (31.2)0.081
  • Values presented as mean±SD for continuous variables and as the number (percentages) for categorical variables.

  • ICD, implantable cardioverter-defibrillator; LA, left atrium; LV, left ventricle; LVOT, left ventricular outflow track; SCD, sudden cardiac death.