Dataset description of the outcomes used in the Mendelian randomisation analyses
| Characteristic | Rheumatoid arthritis | Multiple sclerosis | Psoriasis | Psoriasis arthritis |
| Cases (abs. (rel.)) | 14 361 (0.25) | 47 429 (0.41) | 5621 (0.02) | 2063 (0.01) |
| Controls (abs. (rel.)) | 43 923 (0.75) | 68 374 (0.59) | 252 323 (0.98) | 252 323 (0.99) |
| Sample size | 58 284 | 115 803 | 257 944 | 254 386 |
| Available SNPs | 8 747 963 | 6 304 359 | 16 355 286 | 16 355 281 |
| Reference | Okada et al25 | Patsopoulos et al26 | FinnGen27 | FinnGen27 |
SNP, single-nucleotide polymorphism.