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

Table 3 Staining positivity for mucin 5AC and mucin 6 n (%)

		Mucin 5AC			Mucin 6
		Surface cell positivity	Neck cell positivity	Gland cell positivity	Surface cell positivity	Neck cell positivity	Gland cell positivity
H. pylori+/NSAID-	a	29 (96.7)	29 (96.7)	2 (6.7)	0 (0)	4 (13.3)	29 (96.7)
(n = 30)	b	29 (96.6)	27 (90)	0 (0)	0 (0)	1 (3.3)	25 (83.3)
H. pylori-/NSAID+	a	18 (100)	18 (100)	2 (11.1)	0 (0)	4 (22.2)	17 (94.4)
(n = 18)	b	16 (88.9)	15 (83.3)	0 (0)	0 (0)	2 (11.1)	14 (77.8)
H. pylori+/NSAID+	a	24 (100)	24 (100)	2 (8.3)	0 (0)	5 (20.8)	24 (100)
(n = 24)	b	24 (100)	23 (95.8)	2 (8.3)	0 (0)	2 (8.3)	22 (91.7)
H. pylori-/NSAID-	a	20 (100)	20 (100)	0 (0)	0 (0)	5 (25)	20 (100)
(n = 20)	b	19 (95)	16 (80)	0 (0)	0 (0)	1 (5)	19 (95)
Total	a	91 (98.9)	91 (98.9)	6 (6.5)	0 (0)	18 (19.6)	90 (97.8)
(n = 92)	b	88 (95.7)	81 (88.0)	2 (2.2)	0 (0)	6 (6.5)	80 (97.0)

a: Positive stain defined as a stain extent and intensity score product ≥ 2; b: Strongly positive stain, defined as a stain extent and intensity score product equalling 6 or 9. H. pylori: Helicobacter pylori; NSAID: Non-steroidal anti-inflammatory drugs. +: Positive; -: Negative.