The Relationship between Serum Cholesterol and Impulsiveness in the Division of the Republic of Korean Army

군부대 내 부적응 병사에서 충동성과 혈청 지질과의 상관성

  • Kim, Seul Ki (Department of Neuropsychiatry, Chuncheon National Hospital) ;
  • Kang, Suk-Hoon (Department of Psychiatry, College of Medicine, Dankook University) ;
  • Lim, Myung Ho (Department of Psychiatry, College of Medicine, Dankook University) ;
  • Choi, Jong hyuk (Department of Neuropsychiatry, Chuncheon National Hospital) ;
  • Lee, Byung yong (Department of Neuropsychiatry, Chuncheon National Hospital)
  • 김슬기 (국립춘천병원 정신과) ;
  • 강석훈 (단국대학교 의과대학 정신건강의학교실) ;
  • 임명호 (단국대학교 의과대학 정신건강의학교실) ;
  • 최종혁 (국립춘천병원 정신과) ;
  • 이병용 (국립춘천병원 정신과)
  • Received : 2012.08.28
  • Accepted : 2012.10.09
  • Published : 2012.10.30

Abstract

Objective : Previous studies reported a correlation between the low serum cholesterol level and impulsive behaviors. In this study, we investigate an association between the serum lipid levels and psychological parameters in maladaptive soldiers in the Korean Army. Methods : A total of ninety-six maladaptive subjects and thirty-six normal controls in the Korean army were evaluated with the Korean version of Barratt Impulsiveness Scale (K-BIS), Korean version of Beck Suicidal Ideation Scale (K- BSIS), Korean version of Beck Depression Inventory (K-BDI) and Korean version of Beck Anxiety Inventory (K-BAI). Serum total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL) and high density lipoprotein (HDL) level were measured by overnight fasting blood sampling. Results : There were no significant differences between the groups in demographic characteristics. Serum total cholesterol levels (t=-2.209, p=0.032), triglyceride levels (t=-4.593, p<0.001), and LDL levels (t=-3.753, p=0.001) of maladaptive subjects were significantly lower than those of normal controls, and maladaptive subjects had higher K-BIS scores than normal controls (t=7.542, p<0.001). Negative correlation was found between LDL levels and non-planning impulsiveness in the maladaptive subjects (r=-0.253, p=0.013). LDL levels (${\beta}=-0.258$, p=0.008) and K-BDI scores (${\beta}=0.266$, p=0.043) emerged as significant predictors for non-planning impulsiveness. Conclusion : These results suggested that LDL level was associated with non-planning impulsiveness. These findings suggested that serum cholesterol levels might be available as a biological marker of impulsiveness. However, more large samples, longitudinal biological study and psychiatric evaluations should be needed to develop a preventive intervention for maladaptive male conscripts in the Korean army.

Keywords

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