Development and validation of machine learning nomograms for predicting survival in stage IV pancreatic cancer: A retrospective study

Table 3 Values of C-index and area under the curve of the nomogram in the training and the validation cohort

Data set	OS					CSS
	C-index (95%CI)		AUC			C-index (95%CI)		AUC
			6-month	12-month	18-month			6-month	12-month	18-month
Training set	0.727	0.711-0.743	0.801	0.775	0.787	0.727	0.711-0.743	0.800	0.774	0.785
Validation set	0.719	0.695-0.744	0.762	0.799	0.785	0.716	0.691-0.741	0.759	0.797	0.785

OS: Overall survival; CSS: Cancer-specific survival; AUC: Area under the curve.