J Korean Med Sci.  2009 Feb;24(1):26-31. 10.3346/jkms.2009.24.1.26.

Psychometric Validation of the Korean Version of Structured Interview for Post-traumatic Stress Disorder (K-SIP)

Affiliations
  • 1Department of Psychiatry and Stress Research Institute, Seoul Paik Hospital, Inje University, Seoul, Korea.
  • 2Department of Psychiatry, Hanyang University Guri Hospital, Guri, Korea.
  • 3Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea. alberto@catholic.ac.kr
  • 4Department of Psychiatry, Wonkwang University Hospital, Wonkwang University, Iksan, Korea.
  • 5Department of Psychiatry, Konkuk University Hospital, Konkuk University, Seoul, Korea.
  • 6Department of Psychiatry, Dongsan Medical Center, Keimyoung University, Daegu, Korea.
  • 7Department of Psychiatry, Seoul Veterans Hospital, Seoul, Korea.
  • 8Department of Psychiatry, Eulji General Hospital, Eulji University, Daejeon, Korea.
  • 9Department of Psychiatry, Kangdong Sacred Heart Hospital, Hallym University, Seoul, Korea.
  • 10Department of Psychiatry, School of Medicine, Ewha Womans University, Seoul, Korea.

Abstract

For diagnosis and management of post-traumatic stress disorder (PTSD), the easily administered assessment tool is essential. Structured Interview for PTSD (SIP) is a validated, 17-item, simple measurement being used widely. We aimed to develop the Korean version of SIP (K-SIP) and investigated its psychometric properties. Ninety-three subjects with PTSD, 73 subjects with mood disorder or anxiety disorder as a psychiatric control group, and 88 subjects as a healthy control group were enrolled in this study. All subjects completed psychometric assessments that included the K-SIP, the Korean versions of the Clinician-Administered PTSD Scale (CAPS) and other assessment tools. The K-SIP presented good internal consistency (Cronbach's alpha=0.92) and test-retest reliability (r=0.87). K-SIP showed strong correlations with CAPS (r=0.72). Among three groups including PTSD patients, psychiatric controls, and normal controls, there were significant differences in the K-SIP total score. The potential cut-off total score of K-SIP was 20 with highest diagnostic efficiency (91.9%). At this point, the sensitivity and specificity were 95.5% and 88.4%, respectively. Our result showed that K-SIP had good reliability and validity. We expect that K-SIP will be used as a simple but structured instrument for assessment of PTSD.

Keyword

Post-Traumatic; Stress Disorder; Validation Studies
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