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

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

Author information

1
Department of Psychiatry, Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea.
2
Department of Medicine, School of Medicine, Seoul National University, Seoul, Republic of Korea.
3
Department of Social Welfare, Induk University, Seoul, Republic of Korea.
4
Department of Social Welfare, Soongsil University, Seoul, Republic of Korea.
5
Department of Psychiatry, School of Medicine, Konkuk University, Seoul, Republic of Korea.

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.

KEYWORDS:

Low-income; Suicide; Type D personality

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