INS and type 2 diabetes mellitus: Clinical data were collected for 645/775 patients (mean age 64 ± 15(SD) years; 351 (54.4%) males from 40/43 general practices; 96.4% had type 2 diabetes; 6.5% were insulin treated, 54.3% non-insulin treated, 31.5% both insulin and non-insulin treated and 3.4% diet only.