Figure 2

Conditional inference tree. The tree was fitted based on age, gender, pre-injury comorbidities and injury characteristics to identify predictors of in-hospital mortality. For node 1–4, the Bonferroni-adjusted p-values are given. The terminal nodes 5–9 provide information on the number of individuals (N) of the node and the relative frequency of deceased patients per node (grey bar). Absolute frequencies of deceased patients (n) per node are provided below the bar plot.