Table 1.

Baseline clinical characteristics of three major cohort

Characteristics	TCGA Cohort	GSE42127	GSE72094
n	492	132	398
Follow up time (mean (SD))	2.48 (2.44)	4.12 (2.64)	2.17 (1.10)
Status (%)
Alive	312 (63.4)	90 (68.2)	285 (71.6)
Dead	180 (36.6)	42 (31.8)	113 (28.4)
Gender (%)
Female	267 (54.3)	65 (49.2)	222 (55.8)
Male	225 (45.7)	67 (50.8)	176 (44.2)
Stage (%)
Stage I	268 (54.5)	89 (67.4)	255 (64.1)
Stage II	119 (24.2)	22 (16.7)	69 (17.3)
Stage III	80 (16.3)	20 (15.2)	58 (14.6)
Stage IV	25 ( 5.1)	1 ( 0.8)	16 ( 4.0)
Age (%)
<70	307 (62.4)	80 (60.6)	184 (46.2)
≥70	185 (37.6)	52 (39.4)	214 (53.8)