INS and type 2 diabetes mellitus: These groups had similar mean age (67 vs 66 years), gender (71% vs 70% male), weight (86.5 kg vs 89.5 kg), BMI (30.0 vs 30.7), known type 1 diabetes (7.8% vs 7.4%), type 2 diabetes (85.2% vs 88.2%), not known to be diabetic (7% vs 4.4%) and use of insulin (52.2% vs 46.3%) or oral diabetic therapies (75.6% vs 79.4%).