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.
Original language | English (US) |
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Pages (from-to) | 10-13 |
Number of pages | 4 |
Journal | Injury Prevention |
Volume | 7 |
Issue number | 1 |
DOIs | |
State | Published - Mar 2001 |
Externally published | Yes |
Keywords
- Injury severity score
- New injury severity score
- Trauma
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Pediatrics, Perinatology, and Child Health