FIG 3.

Kaplan-Meier plots of the effect of microsatellite status on overall survival on the basis of treatment arm (microsatellite instability–high [MSI-H], top; microsatellite stable [MSS], bottom). Log-rank P values are reported from an unadjusted analysis. The results refer to all patients for whom mutational analysis was available, which includes pre-KRAS amendment and post-KRAS amendment patients. The proportions of right and transverse and left tumors in MSI-H tumors are 79.2% and 20.8%, respectively.