Longitudinal Development of Primary and Secondary Posttraumatic Growth in Aging Veterans and Their Wives: Domain-Specific Trajectories

PTSD and PTG in French and American Firefighters: A Comparative Study

Studies show that experiencing traumatic events can lead to positive psychological change, or posttraumatic growth (PTG). In the hope of promoting PTG, authors have been focusing on identifying the factors that may foster PTG. Despite these attempts, the literature shows inconsistencies, making it difficult to know which variables may be involved in the process of growth. Indeed, authors seem to disagree on the nature of the relationship between PTSD and PTG, time since the event, social support, intrusive rumination, and sociodemographics. Thus, this study aims to clarify these discrepancies, and verify whether the processes involved are the same across two different cultural groups, both of which are confronted with traumatic events regularly: 409 American firefighters, and 407 French firefighters. Results indicate that, in both samples, PTG is positively related to PTSD, subjective perceptions of the event, stress during the event, disruption of core-beliefs, and deliberate rumination; and unrelated to social support, core-self evaluations, and socio-demographic variables (age, gender, relationship status, etc.). However, time since the event and the number of years on the job only predicted PTG in the American sample, while colleague and emotional support only predicted PTG in the French sample. Additionally, American firefighters reported more growth, more social support, more positive self-perceptions, more intrusive rumination, and more neuroticism than French firefighters. These results suggest that the process of growth, as defined by Tedeschi and Calhoun, is relatively stable among firefighters, but that some differences do exist between cultural groups.

After Experiencing a Tornado: Adolescents' Longitudinal Trajectories in Posttraumatic Growth and Their Association with Posttraumatic Stress Symptoms

This study investigated the trajectories in posttraumatic growth (PTG) among adolescents who survived from the Yancheng tornado in China, and explored the effects of posttraumatic stress symptoms (PTSS) on these trajectories. Participants (n = 246) finished 4 assessments at 6, 9, 12, and 18 months after the tornado. Growth mixture model and logistic regression were used to examine the heterogeneous trajectories and the role of PTSS for differentiating trajectories respectively. Two latent PTG trajectories were observed: group with decreasing PTG and group with fluctuant PTG, which might stem from the illusory component and the factual component of PTG respectively based on the two-component model; and adolescents with more PTSS had higher probabilities generating decreasing PTG, that is, illusory PTG. This study suggested differentiating PTG trajectories and related influencing factors to improve the post-disaster psychological interventions in a longitudinal perspective.

World Trade Center Exposure and Posttraumatic Growth: Assessing Positive Psychological Change 15 Years after 9/11

We evaluated the presence of posttraumatic growth (PTG) among survivors of the 9/11 terrorist attack and how indicators of psychosocial well-being, direct 9/11-related exposure, and posttraumatic stress symptoms (PTSS) relate to PTG. PTG was examined among 4934 participants using the Posttraumatic Growth Inventory (PTGI). A confirmatory factor analysis (CFA) was conducted to determine if the original factor structure of the PTGI fits our data and principal component analysis (PCA) to identify the appropriate factor structure. Multivariable linear regression models were used to examine the association between PTG and indicators of psychosocial well-being, 9/11-related exposure, and PTSS, controlling for covariates. CFA identified a two-factor structure of the PTGI as a better fit than the original five-factor model. Participants who experienced very high 9/11-related exposure level (ß = 7.72; 95% CI: 5.75-9.70), higher PTSS at waves 1 (ß = 0.13; 95% CI: 0.08-0.18) and 2 (ß = 0.09; 95% CI: 0.05-0.14), high social integration (ß = 5.71; 95% CI: 4.47, 6.96), greater social support (ß = 0.49; 95% CI: 0.37, 0.61), and higher self-efficacy (ß = 1.26; 95% CI: 1.04, 1.48) had higher PTGI scores. Our findings suggest PTG is present, 15 years following the 9/11 terrorist attack. Very high-level 9/11 exposure, PTSS, and indicators of psychosocial well-being were associated with PTG.