Abstract
ObjectivesFew reports have indicated the secular trend in the sudden cardiac death (SCD) incidence and pre-arrest comorbidities. This study aimed to comprehensively analyze the trend of SCD incidence and its association with pre-arrest comorbidities. MethodsThis population-based cohort study analyzed Taiwan's National Health Insurance (NHI) research database and identified SCD incidents by inspecting data from all emergency department visits from 2011 to 2018. The inclusion criteria were ICD-9:427.5 or 427.41, or ICD-10:I46.9, I46.8, or I46.2. Pre-existing comorbidities were confirmed based on medication use. Multivariable logistic regression was adopted with covariates age, sex, and pre-existing comorbidities. ResultsThis study reviewed a total of 184,164,969 person-year records, and identified 92,138 SCD incidents. From 2011 to 2018, the SCD incidence rate increased from 36.3 to 55.4 per 100,000 enrollees in Taiwan. The top five pre-arrest comorbidities were stable, while the prevalence of chronic kidney disease rose significantly. Compared to those aged 20–29, enrollees aged >65 years had significantly higher odds of SCD (aOR:27.30, 95% CI:26.05–28.61). Higher odds of SCD were noted in the enrollees who had a seizure (aOR:2.24, 95% CI:2.12–2.38), parkinsonism (aOR:1.81, 95% CI:1.73–1.89), psychological disorders (aOR:1.59, 95% CI:1.56–1.62), diabetes mellitus (aOR:1.44, 95% CI:1.41–1.46), heart diseases (aOR:1.41, 95% CI:1.38–1.44). ConclusionsThe incidence of SCD steadily increased in Taiwan from 2011 to 2018. Hypertension, diabetes mellitus, heart disease, psychological disorders, and arthritis were major pre-arrest comorbidities. Age is the most important risk factor for SCD. Further large-scaled population-based study that investigated in diverse ethnicities from countries in addition to Asians would be warranted.
Published Version
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