Prevalence of Helicobacter pylori cagA and iceA Genes and Their Association with Gastrointestinal Diseases

Table 2

Relation between clinical status by endoscope of H. pylori infection and different virulence genes.

	Clinical status by endoscope								Test of significance	value
	Gastritis; ( = 50)		peptic ulcer; ( = 27)		Gastric cancer; ( = 4)		Mixed; lesion; ( = 9)
	N	%	N	%	N	%	N	%
cag A
cag A+	22	44.0	18	66.7	2	50.0	9	100.0	Fisher's exact test; 178.93	<0.001
cag A−	28	56.0	9	33.3	2	50.0	0	0.0
ice A
ice A1+	5	10.0	2	7.4	0	0.0	3	33.3	Fisher's exact test; 175.54	<0.001
ice A2+	7	14.0	3	11.1	0	0.0	2	22.2
ice A1∕A2+	11	22.0	5	18.5	3	75.0	3	33.3
ice A−	27	54.0	17	62.9	1	25.0	1	11.2

N: number, %: percentage, of Fisher’s exact test, .