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Reliability and Validity of the Korean Version of the Post-Traumatic Stress Disorder Checklist in Public Firefighters and Rescue Workers  

Park, Shinwon (Department of Psychology, Ewha Womans University)
Jeong, Hyeonseok S. (Department of Radiology, Incheon St. Mary's Hospital, The Catholic University of Korea)
Im, Jooyeon Jamie (Interdisciplinary Program in Neuroscience, College of Natural Sciences, Seoul National University)
Jeon, Yujin (Ewha Brain Institute, Ewha Womans University)
Ma, Jiyoung (Interdisciplinary Program in Neuroscience, College of Natural Sciences, Seoul National University)
Choi, Yera (Ewha Brain Institute, Ewha Womans University)
Ban, Soonhyun (Ewha Brain Institute, Ewha Womans University)
Kim, Sungeun (Ewha Brain Institute, Ewha Womans University)
Yu, Siyoung (Ewha Brain Institute, Ewha Womans University)
Lee, Sunho (Interdisciplinary Program in Neuroscience, College of Natural Sciences, Seoul National University)
Jeon, Saerom (Ewha Brain Institute, Ewha Womans University)
Kang, Ilhyang (Ewha Brain Institute, Ewha Womans University)
Lee, Bora (Ewha Brain Institute, Ewha Womans University)
Lee, Sooyeon (Ewha Brain Institute, Ewha Womans University)
Son, Jihee (Ewha Brain Institute, Ewha Womans University)
Lim, Jae-ho (Central Officials Training Institute)
Yoon, Sujung (Ewha Brain Institute, Ewha Womans University)
Kim, Eui-Jung (Department of Psychiatry, College of Medicine, Ewha Womans University)
Kim, Jieun E. (Ewha Brain Institute, Ewha Womans University)
Lyoo, In Kyoon (Ewha Brain Institute, Ewha Womans University)
Publication Information
Korean Journal of Biological Psychiatry / v.23, no.1, 2016 , pp. 29-36 More about this Journal
Abstract
Objectives Firefighters and rescue workers are likely to be exposed to a variety of traumatic events; as such, they are vulnerable to the risk of post-traumatic stress disorder (PTSD). The psychometric properties of the Korean version of the PTSD Checklist (PCL), a widely used self-report screening tool for PTSD, were assessed in South Korean firefighters and rescue workers. Methods Data were collected via self-report questionnaires and semi-structured clinical interviews administered to 221 firefighters. Internal consistency, item-total correlation, one-week test-retest reliability, convergent validity, and divergent validity were examined. Content validity of the PCL was evaluated using factor analysis and receiver operating characteristic (ROC) analyses were used to estimate the optimal cutoff point and area under the curve. Results The PCL demonstrated excellent internal consistency (${\alpha}=0.97$), item-total correlation (r = 0.72-0.88), test-retest reliability (r = 0.95), and convergent and divergent validity. The total score of PCL was positively correlated with the number of traumatic events experienced (p < 0.001). Factor analysis revealed two theoretically congruent factors: re-experience/avoidance and numbing/hyperarousal. The optimal cutoff was 45 and the area under the ROC curve was 0.97. Conclusions The Korean version of the PCL may be a useful PTSD screening instrument for firefighters and rescue workers, further maximizing opportunities for accurate PTSD diagnosis and treatment.
Keywords
Post-traumatic stress disorder; Reliability; Validity;
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Times Cited By KSCI : 5  (Citation Analysis)
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