Table 3.

Pathological Characteristics

	All patients (n=257)		Patients with < 15 nodes examined (n=129)		Patients with ≥ 15 nodes examined (n=128)		p – value <15 vs. ≥15 nodes examined
	n or median	% or range	n or median	% or range	n or median	% or range
Tumor size	4.5cm	<0.5cm–20.0cm	3.5cm	<0.5cm–20.0cm	5.5cm	<0.5cm–16.0cm	0.0006
Tumor location							0.8898
GE junction/cardia	69	26.8	33	25.6	36	28.1
Body/fundus	83	32.3	44	34.1	39	30.5
Antrum	100	38.9	50	38.8	50	39.1
Diffuse/multifocal	5	1.9	2	1.6	3	2.3
Tumor grade							0.173
Well differentiated	7	2.7	4	3.1	3	2.3
Moderately differentiated	77	30	44	34.1	33	25.8
Poorly differentiated	147	57.2	70	54.3	77	60.2
Undifferentiated	17	6.6	5	3.9	12	9.4
Unknown	9	3.5	6	4.7	3	2.3
Lauren classification							1
Intestinal	55	21.4	27	20.9	28	21.9
Diffuse	33	12.8	16	12.4	17	13.3
Mixed	3	1.2	1	0.8	2	1.6
Unknown	167	64.6	85	65.9	81	63.3
Borrmann classification							0.6061
Polypoid	36	14	19	14.7	17	13.3
Fungating	37	14.4	15	11.6	22	17.2
Ulcerated	135	52.3	70	54.3	65	50.8
Infiltrative	35	13.6	19	14.7	16	12.5
Unknown	14	5.4	6	4.7	8	6.3
Lymphovascular (small vessel) invasion	140/201	69.7	56/98	57.1	84/103	81.6	0.0002
Venous (large vessel) invasion	71/160	44.4	23/77	29.9	48/83	57.8	0.0005
Perineural invasion	104/164	63.4	46/74	62.2	58/90	64.4	0.8707