title: The role of obsessive beliefs in patients with major depressive disorder.
abstract: OBJECTIVE
  The aim of this study is to evaluate the differences in obsessional beliefs between patients with major depressive disorder (MDD) and matched healthy controls using the obsessive-beliefs questionnaire (OBQ).
  
  
  METHODS
  The study sample included 74 outpatients with MDD and 74 healthy subjects. The two groups were matched for age, gender, and education level. The diagnoses were based on the Diagnostic and Statistical Manual of Mental Disorder (DSM-IV). The severity of depression was measured with the Hamilton Depression Rating Scale (HAM-D). All participants filled out the 44-item OBQ.
  
  
  RESULTS
  The total and subscale OBQ scores [Responsibility/Threat Estimation (RT), Perfectionism/Certainly (PC), and Importance/Control of Thoughts (ICT)], were significantly higher in patients with MDD than those of the control group. There was a positive correlation between HAM-D scores and the OBQ subscale scores (RT, PC, and ICT) in the patients.
  
  
  CONCLUSIONS
  Obsessional beliefs appear to be related to MDD.
authors.affiliation: Departments of Psychiatry, Faculty of Medicine, Recep Tayyip Erdogan University , Rize , Turkey.
authors.forename: Bulent
authors.initials: B
authors.lastname: Bahceci
authors.forename: Erman
authors.initials: E
authors.lastname: Bagcioglu
authors.forename: Fatmagül Helvacı
authors.initials: FH
authors.lastname: Celik
authors.forename: Selim
authors.initials: S
authors.lastname: Polat
authors.forename: Ayşe
authors.initials: A
authors.lastname: Koroglu
authors.forename: Gökhan
authors.initials: G
authors.lastname: Kandemir
authors.forename: Cicek
authors.initials: C
authors.lastname: Hocaoglu
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D003865:Major Depressive Disorder / Q000150:complications / Q000523:psychology*; D005260:Female; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D008875:Middle Aged; D008960:Models, Psychological; D009770:Obsessive Behavior / Q000150:complications / Q000175:diagnosis / Q000523:psychology*; D009771:Obsessive-Compulsive Disorder / Q000523:psychology*; D011569:Psychiatric Status Rating Scales; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D055815:Young Adult