Type 1 Diabetes Ups MS Risk [MORE: Physician's Weekly Article-November 20, 2006 Vol. XXIII, No. 44] People with type 1 diabetes appear to be three times more likely than others to develop multiple sclerosis (MS), according to a study published in the July 2006 Archives of Neurology. A group of researchers assessed the link between type 1 diabetes and MS by looking at two population-based disease registers: the Danish Hospital Discharge Register and the Danish Multiple Sclerosis Register. The study revealed that first-degree relatives of patients with MS had a 63% increased risk of developing type 1 diabetes. The authors concluded that their study “demonstrates an intra-individual and, to a lesser degree, an intra-familial co-occurrence of multiple sclerosis and type 1 diabetes.