Inducible nitric oxide synthase, nitrotyrosine and apoptosis in gastric adenocarcinomas and their correlation with a poor survival

Table 1 iNOS expression and clinicopathologic features in gastric adenocarcinoma.

Variable	Definition	Intermediate	Negative or high n (%)	P or low n (%)
Age (yr)	≤59 yr	22 (53.66)	14 (56)	0.853
	≥60 yr	19 (46.34)	11 (44)
Gender	Female	20 (48.78)	10 (40)	0.487
	Male	21 (51.22)	15 (60)
Tumor size	<5 cm	12 (29.27)	15 (60)	0.014
	≥5 cm	29 (70.73)	10 (40)
Borrmann classification	0, 1, 2	20 (48.78)	12 (48)	0.951
	3, 4	21 (51.22)	13 (52)
Depth of invasion pT1,	2	11 (26.83)	13 (52)	0.039
	pT3, 4	30 (73.17)	12 (48)
Lymph node metastasis	Negative	13 (31.71)	15 (60)	0.024
	Positive	28 (68.29)	10 (40)
Lauren's classification	Intestinal	15 (36.59)	12 (48)	0.360
	Diffuse	26 (63.41)	13 (52)
Degree of differentiation	Well and moderate	19 (46.34)	11 (44)	0.853
	Poor	22 (53.66)	14 (56)
TNM staging	III, IV	10 (24.39)	12 (48)	0.048
	I, II	31 (75.61)	13 (52)