Mass Gathering Events A Retrospective Analysis of the Triage Categories Type of Injury or Medical Complaint and Usage Rates

The authors reviewed multiple events in Belgium held five or more times and attended by more than 10,000 people between 2009 and 2018 to determine the most prevalent triage categories and injuries. “First aid” was the most common triage category; “skin wounds” were the most common injury. Injuries differed by type of venue (indoor versus outdoor), highlighting planning considerations for future events.