Korean J Psychosom Med.  2021 Dec;29(2):199-206. 10.22722/KJPM.2021.29.2.199.

Comparison of the Suicide Attempt Characteristics Associated with Mixed and Non-Mixed Depression in Koreans

• Choi HS
• Kim SJ
• Nam SH
• Jung DU
• Moon JJ
• Kim YS
• Oh MK
• Jeon DW
• Ahn YM

• KMID: 2524308
• DOI: http://doi.org/10.22722/KJPM.2021.29.2.199

Abstract

Objectives
：This study aimed to compare the characteristics of suicide attempts among Korean patients with mixed and non-mixed depression.
Methods
：Patients who visited the emergency room due to a suicide attempt and participated in the Korean Cohort for the Model Predicting a Suicide and Suicide-related Behavior study were included. Using the Montgomery-Asberg Depression Rating Scale (MADRS) and Young Mania Rating Scale (YMRS), 111 patients were classified into the mixed depression (n=46) and non-mixed depression groups (n=65). The Koukopoulos Mixed Depression Rating Scale (KMDRS) score was calculated using the MADRS and YMRS scores. Suicide attempt characteristics were evaluated using the Columbia Suicidal Severity Rating Scale (C-SSRS) and Suicide Intent Scale (SIS).
Results
：In the mixed depression group, the reason item among the ideation intensity score of the C-SSRS was higher, and the deterrent item score was lower. Scores on the timing and suicide note items of the SIS were higher, and scores for overt communication items were lower in the mixed depression group. The KMDRS score was positively correlated with the C-SSRS ideation intensity and total SIS score. After adjusting for additional variables, the KMDRS scores had a significant effect on the C-SSRS ideation intensity and total SIS scores.
Conclusions
：The mixed depression group showed a difference in the intensity of suicidal ideation and suicidal intention compared to those in the non-mixed depression group. The overall suicidal ideation intensity and suicidal intention increased according to the degree of mixed depression.

Keyword

Suicide; Depression; Mixed depression; Mood disorder