Aim: To determine the relationship between medication self-efficacy and self-management in individuals with type 2 diabetes mellitus
(T2DM), and the role of type D personality in this relationship.
Material and Methods: The study was conducted with 329 individuals with T2DM between May and July 2023. The data of the study
were collected using the Introductory Information Form, Diabetes Medication Self-Efficacy Scale (DMSS), Diabetes Self-Management
Questionnaire (DSMQ), and Type D Personality Scale (TDPS). The data were evaluated using the Pearson Correlation and the Maximum
Likelihood method, which was a structural equation modeling.
Results: It was determined that 64.4% of individuals with T2DM had type D personalities. The relationship between the DMSS and
the DSMQ was negative and weak, the relationship between the TDPS and the DSMQ was negative and weak, and no correlation was
found between TDPS and DMSS. According to the results, it was determined that diabetes self-management had an effect on diabetes
medication self-efficacy (β= -0.163, p=0.019), and diabetes self-management had an effect on TDPS (β= -0.185, p=0.013). According
to the results of the structural equation modeling, it was determined that Diabetes Self-Management was associated with Diabetes
Medication Self-Efficacy, but D-type personality had no mediating effect.
Conclusion: According to the scale evaluation scores, it was concluded that the individuals had good medication self-efficacy, their
self-management was average, and more than half had D-type personalities. In addition, it was determined that type D personality
had no mediating role in the relationship between medication self-efficacy and diabetes self-management in individuals with type D
personalities.