Effects of the myeloperoxidase 463 gene polymorphisms on development of atrophy in H pylori infected or noninfected gastroduodenal disease

Table 1 Distribution of myeloperoxidase genotypes in Hp (+) and Hp (-) patients according to endoscopic findings

	Hp (+)	Hp (-)	Total
n (%)	44 (57.1)	33 (42.9)	77 (100.0)
Gastritis	13	11	24
Ulcer (gastric or duodenum )	18	8	26
Gastric cancer	13	14	27
Myeloperoxidase GG	37	29	66
Myeloperoxidase GA	7	3	10
Myeloperoxidase AA	-	1	1
Neutrophil infiltration	2.80 ± 1.941	0.88 ± 1.24	1.97 ± 1.91

Hp (+): H pylori positive group; Hp (-): H pylori negative group; P < 0.0001, vs the Hp (-) group.

¹Mean ± SD of a score of 0-3 according to the updated Sydney system.