Table 1.

Demographic and clinical characteristics of patients in Cohort #1, Cohort #2 and Cohort #3.

	Training cohort (Cohort #1, N = 70)	Validation cohort (Cohort #2, N = 119)	Validation cohort (Cohort #3, N = 116)
Median age	62.4	65.4	66.8
Gender
Male (%)	84.3	47.9	55.2
Female (%)	15.7	52.1	44.8
Stage
I (%)	64.3	81.1	66.4
II (%)	35.7	18.9	33.6
T-Stage
T1 (%)	19.1	51.3	51.7
T2 (%)	80.9	48.7	48.3
N-Stage
N0 (%)	74.3	53.8	79.3
N1 (%)	25.7	46.2	20.7
Non-recurrence (%)	51.4	54.6	67.2
Recurrence (%)	48.6	45.4	32.8