PURPOSE: As a first step towards reform of the emergency medical service system, we aimed to assess the current status of our emergency department triage systems and illustrated the current status and problems of the Korean emergency department triage system. METHODS: We conducted e-mail and telephone surveys of the triage officers of all 136 emergency medical centers in Korea. RESULTS: All 136 emergency departments responded to the survey. In Korea, a triage scale derived from the 'emergency symptoms based on the requirements of the Emergency Medical Service Act' is the most-used triage scale. We identified factors showing significant association with use of verified triage vs. unverified scales, including level of triage scale, type of hospital, type of emergency department, perception of problems regarding the triage scale, educational performance, and number of annual visits. CONCLUSION: Results of our survey showed that in Korea various kinds of triage scale are in use and the reliability and validity of more than half of them are unverified. Reform of the Korean national triage system is in progress and our survey findings should be helpful in guiding reorganization of the national triage systems of many countries.
Electronic Mail ; Emergencies ; Emergency Medical Services* ; Emergency Service, Hospital* ; Korea ; Patient Safety ; Reproducibility of Results ; Telephone ; Triage* ; Weights and Measures*

Natural infection with severe acute respiratory syndrome-coronavirus-2 or vaccination induces virus-specific immunity protecting hosts from infection and severe disease. While the infection-preventing immunity gradually declines, the severity-reducing immunity is relatively well preserved. Here, based on the different longevity of these distinct immunities, we develop a mathematical model to estimate courses of endemic transition of coronavirus disease 2019 (COVID-19). Our analysis demonstrates that high viral transmission unexpectedly reduces the rates of progression to severe COVID-19 during the course of endemic transition despite increased numbers of infection cases. Our study also shows that high viral transmission amongst populations with high vaccination coverages paradoxically accelerates the endemic transition of COVID-19 with reduced numbers of severe cases. These results provide critical insights for driving public health policies in the era of ‘living with COVID-19.’

PURPOSE: This study analyzed the prognostic factors affecting admission in acute alcohol-intoxicated traumatic brain injury (TBI) patients visiting the emergency room. METHODS: A multicenter, retrospective observational study was conducted on 821 acute alcohol-intoxicated adult trauma patients, who visited 10 university hospital emergency centers from April to November 2016. The primary outcome was hospital admission. The secondary outcome was in-hospital mortality. RESULTS: One hundred sixty-eight patients diagnosed with acute alcohol-intoxicated TBI were analyzed. The increase in blood alcohol concentration was associated significantly with a mild decrease in admission (adjusted odds ratio, 0.993; 95% confidence interval, 0.989 to 0.998; p=0.01). Moderate to severe TBI patients showed a significant increase in admission compared to mild TBI patients (adjusted odds ratio, 12.449; 95% confidence interval, 3.316 to 46.743; p < 0.001). CONCLUSION: This study showed that the admission was inversely correlated with the blood alcohol concentration and is correlated directly with the increase in the severity in TBI. Therefore, emergency physicians may be required to identify the severity of TBI rapidly and accurately in acute alcohol-intoxicated trauma patients visiting the emergency room.
Adult ; Alcohol Drinking ; Blood Alcohol Content ; Brain Injuries* ; Emergencies* ; Emergency Service, Hospital* ; Hospital Mortality ; Humans ; Observational Study ; Odds Ratio ; Patient Admission ; Prognosis ; Retrospective Studies