Table 2.

Statistics and comparison of clinical information of samples in different subtype clusters using Wilcox test

Clinical characteristics	TCGA (N = 501)	Cluster 1 (N = 166)	Cluster 2 (N = 335)	P value
Age(years, mean ± sd)	65.28 ± 10.05	66.79 ± 10.36	64.53 ± 9.822	0.02
Gender(Male/Female)	231/270	61/105	170/165	3.208e-03
Pathologic M(M0/M1/-)	333/24/144	106/6/54	227/18/90	6.496e-01
Pathologic N(N0/N1/N2/-)	324/94/72/11	121/27/9/9	203/67/63/2	8.045e-05
Pathologic T(T1/T2/T3/T4/-)	167/267/45/19/3	70/79/12/3/2	97/188/33/16/1	1.439e-02
Pathologic stage( I / II / III / IV /-)	268/119/81/25/8	107/36/12/7/4	161/83/69/18/4	1.775e-04
Tumor recurrence(Yes/No/-)	151/275/75	45/107/14	106/168/61	7.218e-02
Radiotherapy(Yes/No/- )	60/388/53	16/136/14	44/252/39	2.417e-01