Table 1.
Basic characteristics of included research literature.
| Report | Country | Design | H pylori methods (sampling sites) | IBD methods | Result | Age (yr) | Participant (CD/UC/IBDU) | Quality assessment |
|---|---|---|---|---|---|---|---|---|
| Kaakoush, 2010 | Australia | Case-control | PCR/RUT/histology (colon) | Endoscopy Histology Radiology |
main | 11.4 ± 3.9 vs 10.2 ± 3.9* vs 9.1 ± 4.2† | 77/102 (77/0/0) | 8 9 |
| Casswall, 2010 | Sweden | Case-control | PCR/serum/histology (liver and stomach) | Endoscopy Histology Clinical |
main | NA | 26/51 (4/21/1) | 8 9 |
| Hansen, 2011 | United Kingdom | Cohort | PCR (colon) | Endoscopy Histology Clinical |
main | NA | 24/26 (12/8/4) | 7 9 |
| Sonnenberg, 2011 | United States | Case-control | Histology (stomach) | Endoscopy Histology Clinical |
minor | NA | 26/216 (8/15/3) | 9 9 |
| Hansen, 2013 | United Kingdom | Cohort | PCR/histology/serum (colon, stomach) | Endoscopy Histology Radiology |
minor | 11.9 ± 2.9 vs 10.6 ± 3.5 | 44/42 (29/13/2) | 7 9 |
| Roka, 2014 | Greece | Case-control | Histology/UBT (stomach) | Endoscopy Histology Clinical |
main | 9.3 ± 4.2 vs 7.3 ± 4.4 | 159/1443 (66/34/59) | 8 9 |
CD = Crohn disease, H pylori = Helicobacter pylori, IBD = inflammatory bowel disease, IBDU = inflammatory bowel disease-unclassified, NA = not available, RUT = rapid urea test, UBT = urea breath test, UC = ulcerative colitis.
*
Non-IBD with pathology.
†
Non-IBD with no pathology.