title: Type-d personality can predict suicidality in patients with major depressive disorder.
abstract: OBJECTIVE
  This study investigated the putative association between type-D personality and suicidality, including the history of suicide attempt and suicidal ideation in patients with major depressive disorder (MDD).
  
  
  METHODS
  Eighty-six outpatients aged between 18 and 65 years with MDD were recruited for this study from Ilsan Paik Hospital. The cohort was stratified into two subgroups according to the presence of type-D personality and history of suicide attempt (yes vs. no). Depression severity was evaluated using the Hamilton Depression Rating Scale. The type-D Personality Scale-14 (DS-14), the Beck Hopelessness Scale (BHS), the Barratt Impulsiveness Scale (BIS), the Hamilton Anxiety Scale, and the Beck Scale for Suicidal Ideation (BSS) were also applied.
  
  
  RESULTS
  The total BSS, BHS, and BIS scores were higher for the group with type-D personality than for the group without this personality (p=0.004, 0.01, and 0.003, respectively). In addition, the total scores for the BSS, BHS, and social inhibition (SI; subscale of DS-14) were higher for the group with a history of suicide attempt than for the group without this history (p=0.0000004, 0.003, and 0.033, respectively). There were positive correlations between the total DS-14 score and the total BSS, BHS, and BIS scores (r=0.413 and p=0.000077, r=0.404 and p=0.00012, and r=0.245 and p=0.024, respectively).
  
  
  CONCLUSIONS
  Depressed patients with type-D personality are more vulnerable to suicidality than those without type-D personality, even when the MDD severity is identical. In addition, the SI score was higher in patients with a history of suicide attempt than in those without this history.
authors.affiliation: Department of Psychiatry, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Republic of Korea.
authors.forename: Young-Min
authors.initials: YM
authors.lastname: Park
authors.affiliation: Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea.
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Ko
authors.affiliation: Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea.
authors.forename: Moon-Soo
authors.initials: MS
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea.
authors.forename: Heon-Jeong
authors.initials: HJ
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea.
authors.forename: Leen
authors.initials: L
authors.lastname: Kim
keywords: DS-14; Major depressive disorder; Suicide; Type-D personality
references.citation: Eur J Cardiovasc Prev Rehabil. 2007 Feb;14(1):135-40
references.pmid: 17301639
references.citation: Support Care Cancer. 2014 May;22(5):1277-86
references.pmid: 24326951
references.citation: QJM. 2005 May;98(5):323-9
references.pmid: 15820973
references.citation: Psychosom Med. 1995 Nov-Dec;57(6):582-91
references.pmid: 8600485
references.citation: Ann Behav Med. 1998 Summer;20(3):209-15
references.pmid: 9989328
references.citation: Int J Behav Med. 2014;21(5):833-42
references.pmid: 24198039
references.citation: Eur J Prev Cardiol. 2012 Dec;19(6):1373-80
references.pmid: 21965518
references.citation: PLoS One. 2013 Oct 17;8(10):e77918
references.pmid: 24147099
references.citation: J Affect Disord. 2010 Sep;125(1-3):227-33
references.pmid: 20206385
references.citation: BMC Public Health. 2012 Jan 18;12:42
references.pmid: 22251667
references.citation: Gen Hosp Psychiatry. 2010 Jan-Feb;32(1):66-72
references.pmid: 20114130
references.citation: J Res Med Sci. 2012 Jun;17(6):543-7
references.pmid: 23626631
references.citation: Int J Behav Med. 2014 Jun;21(3):496-505
references.pmid: 24072352
references.citation: Indian J Psychiatry. 2013 Jul;55(3):287-9
references.pmid: 24082252
references.citation: Int J Behav Med. 2009;16(2):98-107
references.pmid: 19322662
references.citation: Psychosom Med. 2005 Jan-Feb;67(1):89-97
references.pmid: 15673629