Table 5.

The discriminatory ability of prognostic factors in predicting cancer-specific survival in the training cohort

Variable	Training cohort (n = 10,612)
	C-index	AUC
Age	0.522	0.530
Tumor size	0.627	0.663
LONT	0.689	0.733
TNM	0.691	0.755
T stage	0.673	0.728
N stage	0.681	0.735
Grade	0.570	0.588
Location	0.538	0.556
Race	0.525	0.538
LONT + T stage + N stage + Location + Age + Grade + size + race	0.746	0.812
LONT + T stage + N stage + Location + Age + Grade + size	0.745	0.811
LONT + T stage + N stage + Location + Age + Grade	0.744	0.810
LONT + T stage + N stage + Location + Age	0.741	0.808
LONT + T stage + N stage + Location	0.737	0.806
LONT + T stage + N stage	0.734	0.798
LONT + N stage	0.728	0.788
LONT + T stage	0.711	0.767

AUC the area under the time-dependent receiver operating characteristic curve, C-index concordance index, LONT Log odds of negative lymph nodes/T stage

LONT was treated as continuous data