Brief Cognitive Behavioral Therapy for Patients with Comorbid Depression and Type 2 Diabetes in an Urban Primary Care Facility: Randomized Controlled Trial

Nadine Mansour; Nargis Labib; Mohamed Khalil; Shereen Esmat

doi:10.3889/oamjms.2022.7883

Authors

Nadine Mansour Department of Public Health and Community Medicine, Alkasr Aleini Medical School, Cairo University, Giza Health Directorate, Ministry of Health and Population, Giza, Egypt https://orcid.org/0000-0003-4582-6730
Nargis Labib Department of Public Health and Community Medicine, Alkasr Aleini Medical School, Cairo University, Giza, Egypt
Mohamed Khalil epartment of Psychiatry, Alkasr Aleini Medical School, Cairo University, Giza, Egypt
Shereen Esmat Department of Public Health and Community Medicine, Alkasr Aleini Medical School, Cairo University, Giza, Egypt https://orcid.org/0000-0002-6115-6100

DOI:

https://doi.org/10.3889/oamjms.2022.7883

Keywords:

Type 2 diabetes mellitus, Depression, Treatment adherence, Cognitive behavioral therapy, Randomized control trial

Abstract

Background: The relation between depression and diabetes is bidirectional and both can lead to morbidity and mortality. Despite the success of Cognitive Behavioral Therapy (CBT) in managing psychiatric comorbidities, research on its use in the treatment of comorbid diabetes and depression is limited and with varying results. The aim of the study is to assess the efficacy of CBT on depressed patients with type 2 diabetes.

Methods: This randomized controlled trial was conducted at an urban primary healthcare center in Egypt from February 2019 to March 2020 and included 80 participants. Key inclusion criteria were uncontrolled type 2 diabetes (T2D) (HbA1c >7.5%) and depression symptoms diagnosed by Beck’s Depression Index. Participants were assessed for all battery of instruments. Subsequently, participants were randomized to control and treatment groups. The treatment group received four CBT sessions. Both groups received a thirty-minute structured diabetes education and their usual diabetes treatment. Three months later, all participants were reassessed for depression and diabetes compliance and all labs were performed post intervention. Both the primary (the difference in HbA1c pre-post intervention) and secondary outcomes (the change in depressive symptoms assessed) were analyzed using ANCOVA.

Results: Both groups were matching at baseline. Post intervention, the CBT group revealed a significant reduction in depressive symptoms while adjusting for Beck Depression Index (BDI) pre-intervention [F (1, 74) = 7.074, p = 0.010]. Moreover, HBA1c was improved significantly when controlling for pre-intervention BDI scores and BMI [F (1,73) = 4.27, p = 0.042] compared to the control group.

Conclusions: The CBT program was both inexpensive and easily accessible. It could fit very well in primary care settings. The results indicated CBT intervention was effective in improving diabetes control and depression. However, a larger-scale study to test its effect on a larger scale population and its long-term impact is recommended.

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