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Table 1 National Committee on Aeronautics severity of injury or illness index (NACA) [16]

From: Pre-hospital intubation by anaesthesiologists in patients with severe trauma: an audit of a Norwegian helicopter emergency medical service

Score Definition
0 No injury or disease
1 Injuries/diseases without any need for acute physician care
2 Injuries/diseases requiring examination and therapy by a physician but hospital admission is not indicated
3 Injuries/diseases without acute threat to life, but requiring hospital admission
4 Injuries/diseases which can possibly lead to deterioration of vital signs
5 Injuries/diseases with acute threat to life
6 Injuries/diseases transported after successful resuscitation of vital signs
7 Lethal injuries or diseases (with or without resuscitation attempts)