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  • Title: Hardiness and sensation seeking as potential predictors of former prisoners of wars' posttraumatic stress symptoms trajectories over a 17-year period.
    Author: Zerach G, Karstoft KI, Solomon Z.
    Journal: J Affect Disord; 2017 Aug 15; 218():176-181. PubMed ID: 28477494.
    Abstract:
    OBJECTIVE: Little is known about trajectories of posttraumatic stress symptoms (PTSS) among former prisoners of war (ex-POWs) and the predictors of those trajectories. This study aimed to assess long-term PTSS trajectories among ex-POWs and comparable veterans and the role of hardiness and sensation seeking in predicting PTSS trajectory. METHOD: A sample of 189 Israeli ex-POWs and 160 comparable combatants participated in a 17 year longitudinal study with three waves of measurements following the 1973 Yom Kippur War (T1: 1991, T2: 2003, T3: 2008). Participants completed validated self-report measures. RESULTS: Latent growth mixture modeling (LGMM) identified four longitudinal PTSS trajectories. Among ex-POWs, the majority of participants were classified in trajectories with "low-increasing" or "medium-increasing" levels of PTSS. Among the comparable veterans, however, the majority of participants were classified in a trajectory with "low" levels of PTSS. Ex-POWs with high levels of hardiness were less likely to belong to the "high" or "medium-increasing" PTSS trajectories, compared to the low-fluctuating trajectory. CONCLUSIONS: The long-term course of PTSS is heterogeneous among both veterans and ex-POWs, with chronic and increasing symptom patterns being more prevalent amongst ex-POWs. Ex-POWs should be considered an at-risk population for exacerbated PTSS trajectories that is related to hardiness personality construct.
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