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Prevalence of Helicobacter pylori strains affected by previous occupation n (%)
| n | H. pylori infection rate |
H. pylori strains |
||
| I | II | |||
| Mental work | 647 | 514 (79.5) | 351 (54.3) | 163 (25.2) |
| Manual work | 928 | 788 (84.9)b | 519 (55.9) | 269 (29.0) |
| Total | 1575 | 1302 (82.7) | 870 (55.2) | 432 (27.4) |
P < 0.01 vs mental workers in the total Helicobacter pylori infection rate. H. pylori: Helicobacter pylori.
