Lowe SR, Raker EJ, Waters MC, et al. - In view of the association of exposure to disasters with a range of posttraumatic stress symptom (PTSS) trajectories, researchers sought to track PTSS for more than a decade postdisaster, and investigated how predisaster resources and vulnerabilities shape the likelihood of trajectory membership. From the Resilience in Survivors of Katrina Study, they included participants f (N = 885), who were originally part of a community college intervention study and were assessed prior to the hurricane (6–21 months predisaster), and nearly 1 year, 4 years, and 12 years postdisaster. They detected three PTSS trajectories: Moderate-Decreasing (69.3%), High-Decreasing (23.1%), and High-Stable (7.6%). In the multivariable predictive model when disaster exposure was adjusted, they identified statistically significant association between predisaster mental illness and the odds of the High-Stable trajectory. While predisaster mental illness is linked with the risk for chronic postdisaster PTSS, other impacts of predisaster resources and vulnerabilities on raised PTSS trajectories do not go beyond those of disaster exposure. Findings thereby support undertaking disaster preparedness efforts targeting those with mental and physical health conditions, and postdisaster mental health services accounting preexisting vulnerabilities along with disaster-related PTSS.