Gastric mucin expression in Helicobacter pylori-related, nonsteroidal anti-inflammatory drug-related and idiopathic ulcers

Table 6 Inflammation score according to the Sydney system (n = 20)

Group	H. pylori	Atrophy	Intestinal metaplasia	Lymphocytes	PMN	Score
H. pylori+/NSAID-	2.20 ± 0.44	0.60 ± 0.54	0.40 ± 0.54	1.80 ± 0.83	1.20 ± 1.30	6.20 ± 2.48a
H. pylori-/NSAID+	0.00 ± 0.00	0.40 ± 0.54	0.60 ± 1.34	1.40 ± 0.89	0.20 ± 0.44	2.60 ± 2.19
H. pylori+/NSAID+	1.80 ± 1.09	0.80 ± 0.83	0.40 ± 0.89	2.00 ± 0.70	1.40 ± 0.89	6.40 ± 3.13
H. pylori-/NSAID-	0.00 ± 0.00	0.20 ± 0.44	0.20 ± 0.44	1.40 ± 0.54	0.40 ± 0.54	2.20 ± 1.64

^aP = 0.017 vs H. pylori-/NSAID- group. PMN: Polymorphonuclear cells; H. pylori: Helicobacter pylori; NSAID: Non-steroidal anti-inflammatory drugs.