Among those with insulin-dependent diabetes mellitus within the ID cohort, people in special housing were more likely to be prescribed fast- (RR 1.25 [0.73–2.14]), intermediate- (1.80 [0.89–3.68]), and long-acting (1.06 [0.59–1.90]) insulins and analogues for injection, as well as sulfonylureas (1.52 [0.77–3.02]). The gene discussed is INS; the disease is type 1 diabetes mellitus.