From: The occupational risk of Helicobacter pyloriinfection among gastroenterologists and their assistants
Study area | Number studies | Quality | Gastro staff (HP positive %) | Doctors (HP positive %) | Assistants (HP positive %) | Non-medical controls (HP positive %) | Medical controls (HP positive %) |
---|---|---|---|---|---|---|---|
Europe | |||||||
 | 10 | all | 1303 (37) | 1417 (39) | 288 (37) | 1623 (45) | 1311 (35) |
 | 6 | good | 1183 (37) | 1228 (39) | 288 (37) | 822 (33) | 931 (35) |
 | 4 | moderate | 120 (46) | 189 (43) |  | 801 (53) | 380 (35) |
America / Australia | |||||||
 | 7 | all | 481 (31) | 204 (52) | 335 (18) | 1929 (16) | 35 (29) |
 | 3 | good | 268 (42) | 150 (61) | 256 (17) | 895 (16) |  |
 | 4 | moderate | 213 (31) | 54 (42) | 79 (19) | 1034 (16) | 35 (29) |
Asia | Â | Â | Â | Â | Â | Â | Â |
 | 7 | all | 596 (73) | 445 (68) | 186 (78) | 5557 (35) | 204 (35) |
 | 6 | good | 596 (73) | 428 (70) | 186 (78) | 5522 (45) | 187 (52) |
 | 1 | moderate |  | 17 (29) |  | 35 (20) | 17 (18) |