Relationship between obsessive beliefs, suicidal ideation and biological YRTHM in patients with major depressive disorder

Objective:Depression is the fourth of all medical illnesses due to the high treatment cost on the disability it caused. Depressive disorders are gradually increasing because of high prevalence rate, difficulties experienced in diagnosis, suicide risk and chronicity. Therefore, the importance of the studies related to depressive disorder is increasing. Obsessive beliefs are a subject on which is focused on Obsessive Compulsive Disorders (OCD). However, any studies investigating the relations between depressive disorder, suicide and biological rhythm have not been seen in literature. The aim of the study is to examine the relation between the obsessive beliefs and suicide and biological rhythm in the patients having depressive disorder. Method: This study was carried out with the patients applying to Psychiatry Clinic in Recep Tayyip Erdogan University between the dates 15th Sep, 2014 and 15th Nov, 2014. One hundred patients, fulfilling the conditions of being included in the study and not fulfilling the conditions of not being included in the study, and 100 patients matched with the previous group as a control group were included in the study. One hundred patients in the study were diagnosed with major depressive disorder according to DSM-5 criterion after clinic interviews. The patients have no psychotropic medicine use stories. The patients, the ages of whom were between 18 and 65 and who did not have additional medical diseases were included in the study. Hamilton Depression Scale, Suicide Behavior Scale, Obsessive Beliefs Questionnaire, Symptom Checklist (SCL-90-R) and Biological Rhythm Scale were applied to those patients. Also, descriptive and comparing statistical program SPSS 22.0 was applied. Findings: Higher obsessive belief level was found in depressive disordered patient in the study. However, any relations between the intensity of depression and the level of obsessive beliefs were not found. On the other hand, a relation between obsessive beliefs and biological rhythm was determined, but a relation between obsessive beliefs and suicide was not found. Result: A relation between depressive disorders and obsessive beliefs was found. The patients applying to the clinic because of depressive disorder should be approached by taking this result into consideration. However, a relation between suicide and obsessive beliefs was not found in this study. More studies are required on this subject.