Table 1.

CagA serology and bacterial phenotypes.

	cagA		cagE and VirD4
	Positive	Negative	Positive	Negative
ELISA Positive	33	23	31	23
Negative	0	4	2	4
Accuracy (%)	61.7		58.3
Immunoblot Positive	44	12	43	11
Negative	2	2	3	3
Accuracy (%)	76.7		76.7