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Table 2 Definitions of “major trauma” used in the study

From: Calculating trauma triage precision: effects of different definitions of major trauma

ISS traditional ISS >15
ISS extended “ISS traditional” and/or “Dead 30 days after injury” and/or “Proximal penetrating injury”
ISS extensive “ISS extended” and/or “ICU LOS >2 days” and/or “ICU LOS ≤2 days and transferred out intubated”
NISS traditional NISS >15
NISS extended “NISS traditional” and/or “Dead 30 days after injury” and/or “Proximal penetrating injury”
NISS extensive “NISS extended” and/or “ICU LOS >2 days” and/or “ICU LOS ≤2 days and transferred out intubated”
Extended “Dead 30 days after injury” and/or “Proximal penetrating injury”
Extensive “Extended” and/or “ICU LOS >2 days” and/or “ICU LOS ≤2 days and transferred out intubated”
  1. ISS = Injury Severity Score; NISS = New Injury Severity Score; ICU = intensive care unit; LOS = length of stay.