INS and chronic obstructive pulmonary disease: Among the DM patients, predictors for late mortality were insulin treatment (HR 1.76 95% CI 1.05–2.94, p = 0.033), older age, with 6% increased odds for mortality per 1-year increment in age (p < 0.001), and chronic obstructive pulmonary disease (HR 1.89 95% CI 1.12–3.19, p = 0.018).