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Occupational distribution characteristics of Helicobacter pylori infection
| Occupational | Subjects (n) | H. pylori positive (n) | H. pylori infection rate (%) | P value |
| Mainly brain work | 169 | 75 | 44.3 | 0.455 |
| Light physical work | 259 | 129 | 49.8 | |
| Heavy physical work | 653 | 299 | 45.7 | |
| Total | 1081 | 503 |
H. pylori: Helicobacter pylori.
