INS and diabetes mellitus: When clinical and sociodemographic characteristics were analyzed according to the duration of use of insulin analogues (≤ 1 year, > 1 year, ≤ 5 years, and > 5 years), the group of patients using insulin analogues for ≤ 1 year had a mean age at diabetes diagnosis greater than the one using insulin analogues for > 5 years and a mean disease duration shorter than all other groups (Table 1).