The univariate logistic regression models revealed that variables which increased the likelihood of having been diagnosed with depressive symptoms in elderly patients with type 2 diabetes were female sex, smoking habit, longer duration of T2DM, hyperlipidemia, neuropathy, increased number of co-morbidities, higher BMI, and higher levels of total and LDL cholesterol, thrombomodulin, PAI-1 and fibrinogen (Table 4). This evidence concerns the gene THBD and type 2 diabetes mellitus.