Table 2. The relationships between KDR and NRP-1 CNG and clinical pathological parameters in non-small cell lung cancer.

Parameters	N	VEGFR2		χ2	P	NRP1		χ2	P
		Low	High			Low	High
Gender				1.64	0.2			0.44	0.51
Male	27	20	7			18	9
Female	13	7	6			10	3
Age				1.09	0.3			0.01	0.94
≤60 years	23	14	9			16	7
>60 years	17	13	4			12	5
Pathological type				1.03	0.31			1.91	0.17
Squamous	20	12	8			12	8
Adenocarcinoma	20	15	5			16	4
Clinical stage				10	0.02			12.47	0.01
Phase I	6	5	1			5	1
Phase II	5	4	1			4	1
Phase III	15	13	2			14	1
Phase IV	14	5	9			5	9
Differentiation				9.12	0.01			7.22	0.03
Low	12	4	8			5	7
Medium	17	14	3			13	4
High	11	9	2			10	1
Lymph node metastasis				5.79	0.02			4.68	0.03
(+)	23	12	11			13	10
(−)	17	15	2			15	2

KDR, kinase insert domain receptor; NRP-1, neuropilin-1; CNG, copy number gain; VEGFR2, vascular endothelial growth factor receptor 2.