According to new research presented October 4, 2018 at the European Association for the Study of Diabetes (EASD) 2018 Annual Meeting in Berlin, onset of type 1 diabetes (T1DM) after age 30 years is common and is frequently misdiagnosed as type 2 diabetes (T2DM) in clinical practice. The study found that 21% of those with insulin-treated diabetes who were diagnosed after the age of 30 had severe insulin deficiency, confirming T1DM. Out of this group, 39% did not receive insulin when they were initially diagnosed, with 46% of those individuals self-reporting that they had T2DM. A rapid progression to insulin dependence was highly predictive of late-onset T1DM with 84% of those with the disease requiring insulin within just one year.