Table 1 The proportion of different types of H. pylori infection in inflammation and activity.

From: A retrospective study assessing the acceleration effect of type I Helicobacter pylori infection on the progress of atrophic gastritis

Group Type I H. pylori infection group Type II H. pylori infection group Control group χ2 P value
n 470 235 470
Inflammation
0 9 (1.9%) 5 (2.2%) 25 (5.3%) 350.67 < 0.01
1 139 (29.6% 162 (68.9%) 394 (83.8%) < 0.01
2 306 (65.1%) 68 (28.9%) 51 (10.9%) < 0.01
3 16 (3.4%) 0 (0%) 0 (0%) < 0.01
Activity
0 153 (32.5%) 178 (75.7%) 421 (89.6%) 354.88 < 0.01
1 217 (46.2%) 45 (19.2%) 41 (8.7%) < 0.01
2 95 (20.2%) 12 (5.1%) 8 (1.7%) < 0.01
3 5 (1.1%) 0 (0%) 0 (0%) < 0.01