From: Serum vitamin D levels and Sjogren’s syndrome: bi-directional Mendelian randomization analysis
Phenotype | Data sources | Sample size | SNPs (n) | Ancestry |
---|---|---|---|---|
25(OH)D | UK Biobank | 417,580 | 8,806,780 | European |
SS | FinnGen | 416,757 (2495 cases; 414,262 controls) | 16,383,308 | European |