Pediatric, Adolescent, and Young Adult Section, Genetics and Epidemiology Section, Joslin Diabetes Center, Boston, MA 02215, USA. Britta.Svoren@joslin.harvard.edu
Serum 25-hydroxyvitamin D was measured in 128 youth with type 1 diabetes mellitus. Less than 25% of the patients were vitamin D sufficient. Because individuals with type 1 diabetes mellitus possess multiple risk factors for skeletal fragility, ensuring vitamin D sufficiency throughout childhood and adolescence in this population seems especially warranted.