Erratum

Hietala K, Harjutsalo V, Forsblom C, Summanen P, Groop P-H, on behalf of the FinnDiane Study Group. Age at onset and the risk of proliferative retinopathy in type 1 diabetes. Diabetes Care 2010;33:1315–1319

In the print version of the article listed above, the affiliation for Paula Summanen is incorrect. The correct affiliation is as follows: the ²Department of Ophthalmology, Helsinki University Central Hospital, Helsinki, Finland. The online version reflects these changes.