Development and validation of a fourteen- innate immunity-related gene pairs signature for predicting prognosis head and neck squamous cell carcinoma

Table 2 Sample statistics for training set and validation set

Characteristic		TrainingSet (n = 260)	TestingSet (n = 257)	p value
Age (years)	<=60	124	132	0.38
Age (years)	> 60	136	125	0.38
Survival status	Living	148	149	0.878
Survival status	Dead	112	108	0.878
Gender	female	69	67	0.983
Gender	male	191	190	0.983
Grade	G 1	29	32	0.653
	G 2	152	151
	G 3	65	59
	G 4	5	2
pathologic_T	T 1	19	17	0.886
	T 2	72	77
	T 3	70	66
	T 4	95	89
pathologic_N	N 0	131	113	0.004
	N 1	50	33
	N 2	64	98
	N 3	6	3
pathologic_M	M 0	244	247	0.1
pathologic_M	M 1/ M X	16	7	0.1
Tumor stage	Stage I	16	11	0.444
	Stage II	40	41
	Stage III	52	41
	Stage IV	152	164
Smoking	Non-Smoking	55	62	0.511
Smoking	Smoking	198	190	0.511

ISSN: 1471-2407