Multivariate Versus Univariate Analysis

The second research question refers to the expected advantage of multivariate compared to univariate modeling. To this end, univariate models for ISS and fatalities have been constructed using impact speed as single explanatory variable. The models for GIDAS are summarized in Table 5.21. The corresponding results for PCDS are summarized in Table 5.22 (note that impact speed was scaled differently for the PCDS data, see Sect. 5.2.3). 

Symbol Scaling factor p-value Unadjusted odds ratio 95 % Cl 

Model Full-data model Cross-validation  

There is one model in the literature which predicts mortality based on impact speed only [6]  

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Dupuy, J., et al., FT-NIR Monitoring of a Scattering Polyurethane Manufactured by Reaction Injection Molding (RIM) Univariate and Multivariate Analysis versus Kinetic Predictions. Macrotnol. Symp., 2002.184 249-260. 

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