(Data not deposited/available upon request.) Includes control subjects [type 1 diabetes-unaffected and non-first- or -second-degree relatives of type 1 diabetes patients] (n = 405), first-degree relatives with ≤1 type 1 diabetes-relevant autoantibody (AAb) (n = 790), second-degree relatives with ≤1 AAb (n = 68), multiple AAb positive at-risk relatives (≥2AAb + , n = 46), and type 1 diabetes patients (n = 637). The typed loci are those curated on immunobase.org as of October 2017.