Development of a Comprehensive Approach for Serious Traffic Crash Injury Measurement and Reporting Systems (2021) / Chapter Skim
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7 This report is organized in the following way. First, we start with a review of injury coding systems and injury severity metrics, leading to the recommendation of a specific medicaldiagnosis-based metric for use by states.
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8 ranging from 1 (minor) to 6 (life threatening)
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9 Table 2 Summary of Injury Severity Metrics and Characteristics Injury Coding System Injury Severity Metric Calculation Common Cutpoint(s) for Serious Injuries KABCO KABCO All occupants with K or A-injury severity rating on police accident report KA AIS MAIS Highest AIS severity score of all injuries 3+ ISS Sum of squares of highest injury severity in each of three different, most-injured body regions 16+ (9+ is also used)
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10 severe AIS scores in each of three different body regions. The highest possible ISS is 75.
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11 chance of mortality) was used by Newgard et al.
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12 purpose. A more serious injury will result in a greater threat to life, and a good injury severity metric should reflect that.
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13 Ease of Use. Ease of use is included here because it facilitates widespread use of a new metric that may be unfamiliar to many highway safety planners.
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