Table 3

Association between Helicobacter pylori genes and endoscopic findings

Antral gastritisDiffuse gastritisPeptic ulcerDuodenitis
The number of patients belonging to each category is reported. The data were analysed by means of the χ2 test, comparing each virulence gene in the 8 reported groups.
χ2=11.8; p<0.05
χ2=4.0; NS
χ2=22.4; p<0.001
s vacA
χ2=22.4; p<0.01
m vacA
χ2=6.6; NS