INS and diabetes mellitus: Results point to: high perception of capacity for self-management of DM; poor knowledge about the disease, with no statistical differences among diabetes non-insulin-treated individuals and insulin-treated; with mean ± SD scores of 3.52 ± 0.69 of DES-SF, 54.34 ± 17.72 of DKT and 0.63 ± 0.30 of EQ-5D.