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Road User

Database table road_user
Database variable name NISS
Introduction date 2009-07-01
Expiration date Still active

Short description

New Injury Severity Score.


Whole number (0-75)

7777 Not Applicable
9999 Unknown


State the NISS value for the accident.

The NISS (New Injury Severity Score) is the sum of the squares of the three most severe AIS scores, regardless of any body region.

NISS is a variation of ISS, intended to correlate better with the prediction of the death of the road user.

Its calculation is simpler than the ISS, since it does not distinguish between body regions.

Short description

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