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The proportion of different types of H. pylori infection in OLGA staging.
| Group | Type I H. pylori infection group | Type II H. pylori infection group | Control group | χ2 | P value |
|---|---|---|---|---|---|
| n | 470 | 235 | 470 | ||
| Stage-0 | 224 (47.7%) | 127 (54%) | 339 (72.1%) | 67.99 | < 0.01 |
| Stage-1 | 197 (41.9%) | 97 (41.3%) | 114 (24.3%) | ||
| Stage-2 | 49 (10.4%) | 11 (4.7%) | 17 (3.6%) |
