Baseline clinical characteristics of the study populations
| Variable | Study population n=730 |
| Demographic data | |
| Age, years | 57.1±14.3 |
| Sex, male | 551 (75.5) |
| SBP, mm Hg | 127.0±16.6 |
| DBP, mm Hg | 76.6±11.5 |
| Body mass index, cm/m2 | 25.2±3.1 |
| Echocardiographic data | |
| Maximal LVWT, mm | 18.3±3.7 |
| Maximal LVWT, ≥30 mm | 7 (1.0) |
| LA size, mm | 44.2±6.8 |
| Peak LV outflow track pressure gradient, mm Hg | 15.2±25.5 |
| LV end-diastolic dimension, mm | 47.5±5.2 |
| LV ejection fraction, % | 64.5±6.7 |
| Risk factors | |
| Family history of sudden cardiac death | 91 (12.5) |
| Non-sustained ventricular tachycardia | 144 (19.7) |
| Unexplained syncope | 98 (13.4) |
| Comorbidities | |
| Hypertension | 292 (40.0) |
| Diabetes | 122 (16.7) |
| Dyslipidaemia | 182 (24.9) |
| Atrial fibrillation | 118 (16.2) |
| Stroke | 71 (9.7) |
| Ischaemic heart disease | 96 (13.2) |
Values presented as mean±SD for continuous variables and as the number (%) for categorical variables.
DBP, diastolic blood pressure; LA, left atrium; LV, left ventricle; LVWT, left ventricular wall thickness;SBP, systolic blood pressure.