Figure 6

The schematic diagram of the conditional inference tree of model using only conventional clinical variables. Panel (A) indicates that Lymph Node status is the most significant factor followed by Grade and ER status. The survival outcomes are displayed in bar graphs in which Group1 represents the proportion of patients with DFS time < 2 yrs (early relapse) and Group2 represents the proportion of patients with DFS time > 8 yrs (late relapse). The tree is trimmed at the significance level of 0.5. Panel (B) illustrates a decision tree constructed for LN- tumours only.