Lee notes that further studies are needed to learn more about how trends in childhood obesity will impact future rates and age at onset of type 2 diabetes.

The important clues for the diagnosis of LADA may include young onset of diabetes, ketotic history, weight loss and insulin deficiency.

Ok, so here's a graph to illustrate this disease diabetes, and its precursor, IGT, are really age-dependent disorders. The older you get, the more likely you are to experience one of these conditions.