Despite the increasing prevalence of type 2 diabetes and associated economic and public health burden, [21;22] data on incidence rates from population-based European studies are scarce. Previous studies identifying clinical as well as undiagnosed, asymptomatic diabetes, have shown rates varying from 3.03 per 1000 person-years in Sweden [23] to 19.1 in Southern Spain [24], with estimates in-between for other European countries or regions [25-29]. The precision of these estimates from individual studies is naturally limited due to the relatively small cohort sizes and numbers of new cases; in addition, rates are expected to be higher compared to those based on a clinical diagnosis alone, as used in InterAct.
