Pediatric Out-of-Hospital Cardiac Arrest Incidence During and After COVID-19 Social Distancing in Korea: A Nationwide 16-Year Interrupted Time-Series Analysis

Background Pediatric out-of-hospital cardiac arrest (OHCA) is a rare but devastating event. However, the extent to which large-scale public health interventions, such as COVID-19 social distancing policies, affected the incidence of pediatric OHCA remains unclear. Methods We conducted a nationwide interrupted time-series analysis using data from the Korea Out-of-Hospital Cardiac Arrest Registry (2008-2023). The primary outcome was the monthly incidence of OHCA among individuals aged 0-18 years. The study period was divided into three phases: pre-intervention (January 2008-February 2020), socia

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