Table 1.
Details of the studies included in the Mendelian randomization analyses
| Phenotype | Consortium | Ethnicity | Sample size | Year | Number of SNPs | Web source |
|---|---|---|---|---|---|---|
| IBD | FinnGen study | European | 5673 | 2021 | 16,380,466 | https://gwas.mrcieu.ac.uk/datasets/finn-b-K11_IBD/ |
| IBD | IIBDGC | European | 12,882 | 2015 | 12,716,084 | https://gwas.mrcieu.ac.uk/datasets/ieu-a-31/ |
| Anti-H. pylori IgG seropositivity | UK biobank | European | 8735 | 2020 | 9170,312 | https://gwas.mrcieu.ac.uk/datasets/ebi-a-GCST90006910/ |
| H. pylori VacA antibody levels | UK biobank | European | 1571 | 2020 | 9178,635 | https://gwas.mrcieu.ac.uk/datasets/ebi-a-GCST90006916/ |
| H. pylori GroEL antibody levels | UK biobank | European | 2716 | 2020 | 9172,299 | https://gwas.mrcieu.ac.uk/datasets/ebi-a-GCST90006913/ |
IBD = inflammatory bowel disease, IIBDGC = International Inflammatory Bowel Disease Genetics Consortium