Psychiatry Investig.  2015 Jan;12(1):16-22. 10.4306/pi.2015.12.1.16.

The Relationship between Type D Personality and Suicidality in Low-Income, Middle-Aged Adults

• Yoon DH
• Kim SJ
• Lee JH
• Kim PM
• Park DH
• Ryu SH
• Yu J
• Ha JH

• KMID: 2316384
• DOI: http://doi.org/10.4306/pi.2015.12.1.16

Abstract

OBJECTIVE
Low-income adults are considered to be a group at high risk for suicide. We sought to examine the effect of type D personality and other socio-demographic factors on suicidality in low-income, middle-aged Koreans.
METHODS
In total, 306 low-income, middle-aged Koreans [age: 49.16+/-5.24 (40-59) years, 156 males, 150 females] were enrolled from the Korean National Basic Livelihood Security System. Socio-demographic data, including employment status, income, health, marital status, and educational attainment, were gathered. Beck's 19-item Scale for Suicidal Ideation (SSI) was applied to evaluate suicidality, and the DS14 was used to assess type D personality.
RESULTS
Unemployment (p<0.01) and absence of spouse (p=0.03) predicted higher SSI scores independent of other socioeconomic factors. All type D personality scores [i.e., negative affectivity (NA), social inhibition (SI), and total score] predicted higher SSI scores independent of all socioeconomic factors (all, p<0.001). Subjects with type D personality had higher SSI scores (p<0.001), and the association between suicidality and socio-demographic factors (employment or physical health) could be found only in subjects without type D personality.
CONCLUSION
Type D personality was a risk factor for suicide in low-income Koreans, independently from socio-economic factors. In addition, the socio-demographic factors were less prominently associated with suicidality in those with type D personality.

Keyword

Suicide; Low-income; Type D personality

MeSH Terms

Adult*
Employment
Humans
Male
Marital Status
Risk Factors
Socioeconomic Factors
Spouses
Suicidal Ideation
Suicide
Type D Personality*
Unemployment