Table 1
Bacterial density in the gastric antrum in relation to cagA status of Helicobacter pylori
Density
Strain characteristics
cagA
+
cagA
−
Not significant.
Grade I
23 (14%)
29 (21.2%)
Grade II
78 (50.6%)
57 (40.8%)
Grade III
42 (27.5%)
38 (27%)
Grade IV
11 (7.2%)
15 (11%)