Table 1.

Prevalence of H. pylori infection with CagA-positive strains is higher in Mexican states with higher mortality rates of gastric cancer

Seroprevalence
% Positive rate of gastric cancer (state studied)
Ptrend
H. pyloriCagALow, 2.5 (Estado de México)Medium, 4.5 (Distrito Federal)High, 6.4 (Chiapas)
++47.655.663.4<0.01
+18.615.29.6<0.01
+4.88.98.3<0.01
2920.318.7<0.01
  • NOTE: Modified from ref. 7.