Expression of COX-2, iNOS, p53 and Ki-67 in gastric mucosa-associated lymphoid tissue lymphoma

Table 1 Correlation between expression of COX-2 and iNOS/p53 and clinicopathological factors in gastric MALT lym-phoma (n, %)

Variable		Total	COX-2	COX-2	P value
			positive	negative
Gender	Male	22	15 (68.2)	7 (31.8)	0.918
	Female	10	7 (70.0)	3 (30.0)
Age (yr)	≤ 5 0	9	6 (66.7)	3 (33.3)	0.874
	> 50	23	16 (69.6)	7 (30.4)
Lymph node	+	10	8 (80.0)	2 (20.0)	0.355
Metastasis	-	22	14 (63.6)	8 (36.4)
Histological	Low	23	14 (60.7)	9 (39.1)	0.124
Grade	High	9	8 (88.9)	1 (11.1)
Histological	I + II	22	16 (72.7)	6 (27.3)	0.472
Stage	III + IV	10	6 (60.0)	4 (40.0)
INOS	+	17	15 (88.2)	2 (11.8)	0.011
	-	15	7 (46.7)	8 (53.3)
p53	+	19	16 (84.2)	3 (15.8)	0.022
	-	13	6 (46.2)	7 (53.8)