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Table 1 Definition of scales

From: Epidemiology of severe trauma in Navarra for 10 years: out-of-hospital/ in-hospital deaths and survivors

ISS

Injury Severity Score

Standardizes severity of traumatic injury based on worst injury of 6 body systems

NISS

New Injury Severity Score

It is the sum of the square of the three lesions with the highest AIS score of the body regions, regardless of the anatomical region

RTS

Revised Trauma Score

Quantifies severity of trauma injuries based on GCS, blood pressure, and respiratory rate

TRISS

Trauma Score and Injury Severity Score

Estimates the probability of survival for trauma patients using the type of trauma, RTS, ISS and the age