Table 1.

Summary of enrollment eligibility criteria for the Burn Model System (BMS) by year

Prior to 2005	2006–2008	2009–2018
Deep second or third degree burns TBSA burned >10% in patients over 50 years old Deep second or third degree burns >20% TBSA in all other age groups Deep second or third degree burns with serious threat of functional or cosmetic threat that involve face, hands, feet, genitalia, perineum, or major joints Third degree burns >5% TBSA in any age group Deep electrical burns including lightning injury; inhalation injury with burn injury Circumferential burns of the extremity or chest	2005 criteria with the below changes: Burn surgery for wound closure required TBSA requirements by age group were changed to >10% for those 65 years or older and 20% for those 18 to 64 years Participants were also required to receive primary treatment at a burn model systems center with reasonable expectation of follow-up treatment at a BMS center	2006 criteria with the below changes: Exclusion of frostbite, toxic epidermal necrolysis, abrasions, necrotizing fasciitis, meningococcemia, and other skin disease