TABLE 3.

The chi-square test of the relation between different risk groups and clinical features in ICGC cohort.

	High risk	Low risk	Chi	P-value
Gender
Female	30 (27.78%)	31 (25.2%)	0.086	0.7693
Male	78 (72.22%)	92 (74.8%)
Age
≤65	40 (37.04%)	49 (39.84%)	0.0905	0.7635
>65	68 (62.96%)	74 (60.16%)
Stage TNM
I-II	53 (49.07%)	88 (71.54%)	11.2832	8.00E-04
III-IV	55 (50.93%)	35 (28.46%)
Prior malignancy
No	92 (85.19%)	109 (88.62%)	0.3343	0.5631
Yes	16 (14.81%)	14 (11.38%)