The Prevalence of Helicobacter pylori Virulence Factors in Bhutan, Vietnam, and Myanmar Is Related to Gastric Cancer Incidence

Table 2

Characteristics of Helicobacter pylori-infected patients in Bhutan, Vietnam, and Myanmar.

	Bhutan		Vietnam		Myanmar
	200		102		69
Mean age	36.6 ± 13.8^†		44.5 ± 13.0		40.1 ± 11.5
Male	94	(47.0%)	47	(46.1%)	28	(40.6%)
Gastric cancer	1	(0.5%)	0	(0.0%)	1	(1.4%)
Peptic ulcer	38	(19.0%)	26	(25.5%)	2	(2.9%)
Gastritis	161	(80.5%)	76	(74.5%)	66	(95.7%)
cagA	200	(100.0%)^†	97	(95.1%)	61	(88.4%)
vacA s1	200	(100.0%)	102	(100.0%)	67	(97.1%)
vacA m1	154	(77.0%)^†	48	(47.1%)	61	(88.4%)
jhp0562-positive	197	(98.5%)	99	(97.1%)	67	(97.1%)
β-(1,3)galT-positive	34	(17.0%)^†	18	(17.6%)	50	(72.5%)
jhp0562-positive/β-(1,3)galT-negative	166	(83.0%)^†	84	(82.4%)	19	(27.5%)
jhp0562-negative/β-(1,3)galT-positive	3	(1.5%)	3	(2.9%)	2	(2.9%)
Double-positive of jhp0562 and β-(1,3)galT	31	(15.5%)^†	15	(14.7%)	48	(69.6%)
cagA/vacA s1m1	154	(77.0%)	46	(45.1%)	55	(79.7%)
cagA/vacA s1m1/jhp0562-positive/β-(1,3)galT-negative	128	(64.0%)^†	37	(36.3%)	15	(21.7%)

indicates a statistically significant difference between Bhutan and Vietnam.
indicates a statistically significant difference between Myanmar and Vietnam.
† indicates a statistically significant difference between Bhutan and Myanmar.