 This study found that frequent users, FUS, accounted for 2.9 percent of all users, with 11.9 percent of total ED attendance. FUS were slightly more likely to have used the emergency medical services, EMS, but less likely to have been appropriately attended. Additionally, FUS were more likely to have a non-urgent triage code than non-FS. Multivariate logistic analysis confirmed a significant effect of triage code, gender, age, EMS usage, and COVID-19 diagnosis for the appropriateness of attendance. This article was authored by Giuseppe Furia, Giuseppe Furia, Antonio Vinci, and others.