Aims: Weestimated long-term trends in prescription medication utilization and costs in patients with type 1 diabetes in two different transplant cohorts (Group 1: transplantation 1986-1999,n = 180; Group 2: transplantation 2000-2008, n = 150). Methods: Data obtained from the Finnish Diabetic Nephropathy Study were linked with the Drug Prescription Register (purchases of medications 1995-2009). Generalized linear mixed models under gamma distribution were used to evaluate the medication cost…