Fig. 4From: Establishment of prognostic nomogram for elderly colorectal cancer patients: a SEER database analysisCalibration plots of OS nomogram model. a 1-year calibration plot of OS using training set; b 3-year calibration plot of OS using training set; c 5-year calibration plot of OS using training set; d 1-year calibration plot of OS using validation set; e 3-year calibration plot of OS using validation set; f 5-year calibration plot of OS using validation setBack to article page