Figure 2

Kaplan-Meier estimates of time to biochemical relapse according to EGFR immunohistochemical status. The solid line represents patients with EGFRlow tumours and the dashed line represents those with EGFRhigh tumours. Median time to biochemical relapse was 104 and 30 months for patients with EGFRlow and EGFRhigh tumours, respectively (log-rank test, p=0.01).