How common is depression in patients with type 2 diabetes?

This study investigated how common depression is in patients with type 2 diabetes (T2D). The main finding was that 20% of patients with T2D also have depression.

The number of people with T2D is constantly increasing. Previous studies have shown that mental health disorders, such as depression are more common in people with T2D than in the general population. Having both T2D and depression has a strong impact on health. Patients with both T2D and mental health disorders are less likely to consistently take their medications. They are also at an increased risk of heart disease. It is not known exactly how common it is for patients to have both T2D and depression.  

This study included 2955 patients with T2D. The patients’ medical records were collected and examined. They were also interviewed annually for the diagnosis of depression.

20.03% of the participants had depression. People with depression were more likely to have been treated intensely for diabetes for a longer period of time. Patients who had a depression diagnosis previously were 6.4 times more likely to develop it again.

Patients who did some light physical activity were 44.8% less likely to develop depression compared to those who lead a sedentary lifestyle. Also, people who were employed were 40.5% less likely to be depressed.

This study concluded that depression is common in patients with T2D. The authors suggested that physical activity and good social support could reduce the risk of depression in these patients.

This study was conducted in Spain. The frequency of mental health disorders varies between different populations. Therefore, more studies in other countries are needed.

If you are concerned about depression, you may consider speaking to your doctor about increasing your physical activity and/or joining a support group.