Table 1. Clinicopathological Variables and BDNF expression in invasive front in 150 gastric cancer patients.

		BDNF expression
Variable	n	High (n=68)	Low (n=82)	P
Gender
Male	119	52	67	0.431b
Female	31	16	15
Age (years)
<69 (median)	71	42	37	0.042a,b
⩾69	79	26	45
Tumour size
⩾5.5 cm (median)	76	37	39	0.404
<5.5 cm	74	31	43
Histological type
Intestinal type	75	32	43	0.512b
Diffuse type	75	36	39
Pathological T category
pT1/2	52	19	33	0.115b
pT3/4	98	49	49
Vessel involvement
+	119	61	58	0.004a,b
−	31	7	24
Lymphatic vessel involvement
+	138	65	73	0.140b
−	12	3	9
Lymph node metastasis
N0	45	13	32	0.008a,b
N1	105	55	50
Liver metastasis
H0	138	63	75	0.790b
H1	12	4	8
Peritoneal carcinomatosis
P0	123	51	72	0.042a,b
P1	27	17	10
Stage classification
Stage I–II	48	17	31	0.094b
Stage III–IV	102	51	51

^aP<0.05.

^bPearson’s χ²-test.