EDN1 and sudden cardiac arrest: WHtR: Waist-to-height ratio; NT-proBNP: N-terminal brain natriuretic pro-peptide; ADMA: Asymmetric dimethylarginine; ET1: Endothelin 1; FFM: Fat-free mass; BF%: Body fat percentage; FM: Fat mass; SCD: Sudden cardiac death; CAVI: Cardio-ankle vascular index; CVD: Cardiovascular disease.