Table 2.
Research results of different inflammatory bowel disease subtypes.
| Included study | H pylori positive | ||||
|---|---|---|---|---|---|
| % IBD | % CD | % UC | % IBDU | % controls | |
| Kaakoush, 2010 | 14 (18.2%) | 14 (18.2%) | 0 | 0 | 23 (22.5%) |
| Casswall, 2010 | 6 (23.1%) | 0 | 6 (28.6%) | 0 | 10 (19.6%) |
| Hansen, 2011 | 3 (12.5%) | NA | NA | NA | 2 (7.7%) |
| Sonnenber, 2011 | 0 | 0 | 0 | 0 | 3 (1.4%) |
| Hansen, 2013 | 6 (13.6%) | 4 (13.8%) | 2 (15.4%) | 0 | 11 (26.2%) |
| Roka, 2014 | 6 (3.8%) | 3 (4.5%) | 2 (5.8%) | 1 (1.7%) | 190 (13.2%) |
CD = Crohn disease, H pylori = Helicobacter pylori, IBD = inflammatory bowel disease, IBDU = inflammatory bowel disease-unclassified, NA = not available, UC = ulcerative colitis.