RA pts more likely to get autoimmune thyroid Dz (AITD), but after dx, AITD risk signif. drops (HR 0.81), suggesting RA Rx lowers AITD risk; greater drop in biologic Rx RA (HR 0.54).Swiss registry compared 13,731 new-onset RA pts to 63,201 matched controls https://t.co/n0n2EfUyqR https://t.co/yMMHvYRsyY