Between 1 and 30 per 10,000 people are affected by<unk> . Although those affected are born with the condition, symptoms typically only begin in adulthood. While the rare cases seen in childhood are equally likely to be male or female, in adulthood symptoms occur more frequently in males than females, potentially due to the higher testosterone levels found in men.<unk>  is more common in people of Asian descent and is the most common cause of sudden death in young males without known underlying cardiac disease in Thailand and Laos. In these countries<unk>  is likely to be responsible for many cases of sudden unexpected nocturnal death syndrome (SUNDS). Local names vary – in the Philippines the condition has been known as Bangungut meaning "a scream followed by sudden death during sleep", while in Thailand it was known as Lai Tai, and in Japan Pokkuri. Type 1<unk>  ECG patterns are seen more frequently in Asian populations (0–0.36%) than those in Europe (0–0.25%) and the United States (0.03%). Similarly, Type 2 and Type 3 ECG patterns are more prevalent in Asia (0.12–2.23%) than in Europe (0.0–0.6%) or the United States (0.02%).
Brugada syndrome
Arrhythmogenic cardiomyopathy
Pacak–Zhuang syndrome
Duchenne muscular dystrophy
Woodhouse–Sakati syndrome
Romano–Ward syndrome
Pascual-Castroviejo syndrome type 1
Catecholaminergic polymorphic ventricular tachycardia