Table 1.

The difference in clinical features between cluster A and cluster B.

Clinical features		Cluster		P-value
		A	B
Age	<65y	64	73	0.592
	≥65y	41	54
Gender	Female	30	58	0.008
	Male	75	69
Grade	G1&2	30	71	<0.001
	G3&4	75	56
Stage	Stage I&II	36	88	<0.001
	Stage III&IV	69	39
T	T1&2	45	91	<0.001
	T3&4	60	36
N	N0	93	125	0.002
	N1	12	2
M	M0	78	113	0.004
	M1	27	14