An analysis was performed using the National Automotive Sampling System/Crashworthiness Data System (NASS/CDS) database to compare the injury/fatality rates of variously restrained driver occupants as compared to unrestrained driver occupants in the total database of drivers/frontals, and also by delta V (velocity change). A structured search of the NASS/CDS was done using the SAS statistical analysis software to extract the data for this analysis, and the Survey Data Analysis (SUDAAN) software package was used to arrive at statistical significance indicators. In addition, this paper goes on to investigate different methods for presenting results of accident database searches including significance results: a risk versus delta-V format for specific exposures; and a percent cumulative injury versus delta-V format to characterise injury trends. These alternative analysis presentation methods are discussed by example using the present study results. (A)
Samenvatting