Echocardiographic characteristics of each group: controls, mutation carriers without phenotype expression (Mut+/Phen−) and mutation carriers with phenotype expression (Mut+/Phen+).

Abbreviations: LVEDD = left ventricular end-diastolic diameter; LVEDV = left ventricular end-diastolic volume; LVEF = left ventricular ejection fraction; LVESD = left ventricular end-systolic diameter; LVESV = left ventricular end-systolic volume; SD = standard deviation.*Significant difference vs. Controls;†Significant difference between Mut+/Phen− and Mut+/Phen+ groups.缩写说明：LVEDD（left ventricular end-diastolic diameter）为左心室舒张末期内径；LVEDV（left ventricular end-diastolic volume）为左心室舒张末期容积；LVEF（left ventricular ejection fraction）为左心室射血分数；LVESD（left ventricular end-systolic diameter）为左心室收缩末期内径；LVESV（left ventricular end-systolic volume）为左心室收缩末期容积；SD（standard deviation）为标准差。*与对照组存在显著差异；†突变阳性表型阴性（Mut+/Phen−）组与突变阳性表型阳性（Mut+/Phen+）组间存在显著差异。