Ventricular tachycardia and ventricular fibrillation underlie many sudden cardiac deaths, but common lifestyle factors that predict their occurrence are poorly understood. This study aimed to assess the association between methamphetamine and cocaine, the most used illicit stimulants, and ventricular arrhythmias (VA) and mortality. Healthcare databases were used to identify adults aged ≥ 18 years receiving hospital-based care in California in 2005-2019. ICD codes were used to identify diagnoses and illicit stimulant use.
