(0.55–32.46) 0.167 Stage IV vs I 4.86 (1.22–19.34) 0.025* Chemotherapy 1.26 (0.68–2.32) (Yes vs No) 0.458 0.89 (0.43–1.82) 0.742 Events/N 65/201 49/185 Abbreviation: CI ¼ confidence interval; HR ¼ hazard ratio; MSI ¼ microsatellite instability; MSS ¼ microsatellite stable...