Echocardiographic data
| Category | Student- athletes | Adolescents with HCM | p Value |
|---|---|---|---|
| LV septal wall thickness (cm) | 0.9±0.1 | 2.4±1.0 | <0.0001 |
| LV posterior wall thickness (cm) | 0.8±0.1 | 1.4±0.4 | <0.0001 |
| LV end diastolic diameter (cm) | 5.1±0.4 | 4.3±0.6 | <0.0001 |
| LV end systolic diameter (cm) | 3.2±0.3 | 2.3±0.5 | <0.0001 |
| Ejection fraction | 0.60±0.06 | 0.70±0.08 | <0.0001 |
| LV mass (gm) | 159±40 | 394±195 | <0.0001 |
| LV mass index (gm/m2) | 89±18 | 206±96 | <0.0001 |
LV, left ventricle; HCM, hypertrophic cardiomyopathy.