The Madiabetes research group has studied the prevalence of depression in patients with type 2 diabetes mellitus (DM2) and have identified the sociodemographic, clinical and psychological factors associated with depression in this population.

In addition, in this study published in British Medical Journal, the annual incidence rate of the disease between patients with DM2 is also examined.

To carry out this work, the researchers conducted a great study of prospective cohorts of patients with DM2 of the Madrid Diabetes Study.The first recruitment campaign included 3443 patients;The second incorporated 727 new patients.The data has been collected since 2007 (initial visit) and annually during the monitoring period (since 2008).

Two out of 10 patients had depression.

Depression was frequent in 20 percent of patients.The cause was related to previous personal history of depression, neuropathy, having informed of a regular or poor health state, treatment with oral antidiabetics plus insulin, female sex and the level of cholesterol in the blood.

On the contrary, the variables inversely associated with depression were: being used, low physical activity, systolic blood pressure and social support.In patients without depression at the beginning of the study, the incidence after one year of follow -up was 1.20 percent.

The authors conclude that depression is very prevalent among patients with DM2 and is associated with several key diabetes related results.

"Our results suggest that the previous mental state, the state of health that they have informed, sex and several complications related to diabetes are associated with differences in the degree of depression.

These findings should alert doctors about the importance of detecting depression in patients with DM2, "they say.