Table 1

Positive rates of COX-1 and COX-2 immunoreactivities in gastric mucosa

	COX-1 positive (%)	COX-2 positive (%)
H pylori negative mucosa (n=15)	14 (93)	0 (0)
H pylori positive gastritis (n=45)	43 (96)	13 (31)1-150
Gastric ulcer
Active ulcer (n=15)	13 (87)	14 (93)1-170
Healing ulcer (n=15)	14 (93)	13 (87)1-170
Scarring (n=15)	15 (100)	7 (47)^**

↵1-150 p<0.05, ^**p<0.005 v COX-2 positive rates at H pylori negative mucosa;
↵1-170 p<0.0001 v COX-2 positive rates atH pylori negative mucosa andH pylori positive gastritis.