Figure 1. Estimated probability of disease free survival.
A: Copy number loss at position 4q21.23 (RP11-570L13) revealed a trend towards shorter median disease free survival (DFS) in univariate analysis (12.5 months versus 28.0 months, P = 0.056). B: Copy number loss at position 4q21.23 (RP11-570L13) in the squamous cell carcinoma (SqCC) subgroup showed strong correlations with shorter DFS (11.2 months versus 39.1 months) P = 0.031. C: Copy number loss at position 4q22.1 (RP11-1053C2) showed significant correlations with shorter DFS (12.5 months versus 32.7 months), P = 0.010. D: Copy number loss at position 4q22.1 (RP11-1053C2) showed significant correlations with shorter DFS in SqCC subgroup (11.7 months versus 35.5 months), P = 0.027. Survival plots for gain aberrations were faded out for the sake of clarity.