Aims: To investigate characteristic of mass burn casualties and criteria of victims resulting from mass burn casualties. Methods: A retrospective study was conducted on 83 mass burn casualties (MBC) and 338 patients admitted to National Institute of Burns from 1/2008 to 12/2013. Evaluated criteria were time, casual agent, place, size of MBC; age, gender, occupation, burn surface are (BSA), deep burn area (DBA), inhalation injury and burn severity. Results: Most MBC was work- related accidents (66.27 percent) by dry casual agents (79.52 percent) and high voltage electricity (13.25 percent). Significant higher incident occurred indoor (72,2 percent), in the period of season changing, 14 - 22h of the day (51.81 percent), at countryside (61.45 percent) with average victim of 4. Adult and male were predominant (92,31 percent and 74,85 percent respectively) in which, worker was 43.49 percent and famer was 39.64 percent. Average BSA and DBA were 31 percent and 12 percent respectively, 24.56 of patients suffered from inhalation injury. Common co-trauma were soft tissue injury (3.55 percent) and visceral organ injury (1.48 percent). Nearly a half of victims was classified as major and severe categories. Conclusion: Mass burn casualty which is mostly due to indoor work accidents, usually happening in changing season and dry casual agents. Nearly a half of victims is clarified as major and severe and high incident of inhalation injury.
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