Table 1. Clinicopathological parameters of THCA patients in the TCGA database.

Clinical parameters	Variable	Total(507)	Percentages(%)
Age	<=65	436	86.0%
	>65	71	14.0%
Pathological stage	Stage I	285	56.2%
	Stage II	52	10.3%
	Stage III	113	22.3%
	Stage IV	55	10.8%
	Unknow	2	0.4%
T	T1	144	28.4%
	T2	167	32.9%
	T3	171	33.7%
	T4	23	4.5%
	TX	2	0.4%
M	M0	283	55.8%
	M1	9	1.8%
	MX	214	42.2%
	Unknow	1	0.2%
N	N0	231	45.6%
	N1	226	44.6%
	NX	50	9.9%
Survival status	Dead	16	3.2%
	Alive	491	96.8%

Abbreviations: T, Tumor; M, Metastasis; N, Node (regional lymph node).