TY - JOUR PY - 2002// TI - Reliability and validity of the Japanese-language version of the impact of event scale-revised (IES-R-J): four studies of different traumatic events JO - Journal of nervous and mental disease A1 - Asukai, Nozomu A1 - Kato, Hiroshi A1 - Kawamura, Noriyuki A1 - Kim, Yoshiharu A1 - Yamamoto, Kohei A1 - Kishimoto, Junji A1 - Miyake, Yuko A1 - Nishizono-Maher, Aya SP - 175 EP - 182 VL - 190 IS - 3 N2 - The authors developed the Japanese-language version of the Impact of Event Scale-Revised (IES-R-J) and investigated its reliability and validity in four different groups: workers with lifetime mixed traumatic events, survivors of an arsenic poisoning case, survivors of the Hanshin-Awaji earthquake, and survivors of the Tokyo Metro sarin attack. Evidence includes retest reliability and internal consistency of the IES-R-J. Posttraumatic stress disorder (PTSD) and partial PTSD cases indicated significantly higher scores than non-PTSD cases. The IES-R-J can be a useful self-rating diagnostic instrument particularly for survivors with PTSD symptoms as a clinical concern (PTSD + partial PTSD) by using a 24/25 cutoff in total score. In analysis of scale structure, the majority of intrusion and hyperarousal items were subsumed under the same cluster, whereas avoidance items made up a separate cluster. Female patients indicated higher scores than male patients. A negative weak correlation between age and the score was found only among female earthquake survivors. The IES-R-J can be used as a validated instrument in future international comparative research.
Language: en
LA - en SN - 0022-3018 UR - http://dx.doi.org/ ID - ref1 ER -