@article{ref1,
title="An overview of the injury severity score and the new injury severity score",
journal="Injury prevention",
year="2001",
author="Stevenson, Mark R. and Segui-Gomez, Maria and Lescohier, I. and Di Scala, C. and McDonald-Smith, Grace P.",
volume="7",
number="1",
pages="10-13",
abstract="OBJECTIVE: The research was undertaken to describe the injury severity score (ISS) and the new injury severity score (NISS) and to illustrate their statistical properties. DESIGN: Descriptive analysis and assessment of the distribution of these scales. METHODS: Three data sources--the National Pediatric Trauma Registry; the Massachusetts Uniform Hospital Discharge Data Set; and a trauma registry from an urban level I trauma center in Massachusetts--were used to describe the distribution of the ISS and NISS among injured patients. RESULTS: The ISS/NISS was found to have a positively skewed distribution and transformation did not improve their skewness. CONCLUSION: The findings suggest that for statistical or analytical purposes the ISS/ NISS should not be considered a continuous variable, particularly if ISS/NISS is treated as a continuous variable for correlation with an outcome measure.",
language="en",
issn="1353-8047",
doi="",
url="http://dx.doi.org/"
}