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Kaplan-Meier plots of the incident colorectal cancers diagnosed during 2010–2014 in the National Cancer Database that had a known KRAS status. A. The status of microsatellite instability (MSI) was not associated with OS of the colorectal cancers (n=14,457, Log-rank test P=0.751). B. The KRAS mutation (versus wild type) was associated with a worse OS of the colorectal cancers (n=45,811, Log-rank test P<0.001).
