Seoul National University Hospital Biomedical Research Institute

Objectives: This study analyzed the current operation of the National Health Information Portal, which provides trustworthy evidence-based health information to the public, to propose directions for improvement in response to the evolving artificial intelligence (AI)-based search environment and increasing demand for personalized health information. Methods: To examine Portal operation, we reviewed project reports, internal planning documents, content management system data, Google Analytics 4 statistics, and triennial quality assessment results produced by the Seoul National University R&DB Foundation, which has managed the project since 2018. Relevant policy documents and domestic and international best practices were also analyzed to identify directions for improvement. Results: The Portal operates to achieve its core values of "verified, easy-to-understand, and integrated information" through a standardized authoring and review system. It enhances reliability and accessibility by developing life cycle-based customized content, providing plain language explanations and summaries, and establishing an ontology- and metadata-based management framework. User engagement has been strengthened by improvements in user interfaces, newsletters, and interactive events. Conclusions: In response to expanding AI-based search availability, the Portal has implemented a Generative Engine Optimization strategy and is exploring strategies to more effectively provide personalized health information in the future, including connectivity with national personal health record systems. The Portal will continue to strengthen its role as a leading public platform that improves health literacy and promotes healthy lifestyle practices in the population.

Objectives: This study aimed to examine the demographic characteristics, chronic disease prevalence, and cardiac arrest-related factors of patients with out-of-hospital cardiac arrest (OHCA) in the Republic of Korea (ROK), and to estimate their long-term survival rates. Methods: We analyzed linkage data from the Sudden Cardiac Arrest Survey (SCAS) with National Health Insurance Service (NHIS) claims data. The study population comprised patients whose data were successfully linked between SCAS and NHIS from 2011 to 2021. The demographic characteristics, prevalence of chronic diseases, and cardiac arrest-related characteristics of these patients were analyzed. The 30-day, 1-year, 3-year, and 5-year survival rates of the linked patients were calculated for each year. Results: Among the patients with OHCA who had completed investigations during the study period, 95.3% were successfully linked to the NHIS database. The number of linked patients with OHCA increased over time, with an increasing proportion of patients aged ≥60 years. Patients with OHCA had a high prevalence of hypertension, diabetes, chronic pulmonary disease, and heart failure. The standardized 1-year survival rate increased from 3.5% in 2011 to 6.7% in 2019, followed by a slight decline to 6.3% in 2021 after the coronavirus disease 2019 pandemic. The 3-year and 5-year survival rates also increased over time. Conclusions: The number of long-term survivors and survival rates of patients with sudden cardiac arrest in ROK continue to increase, and there is a systematic need for continued care and support for these patients.