Objective: Identify distinct symptom profiles among service members and examine unique traumas/injuries associated with these profiles. Method: 3,098 combat-deployed and non-deployed Florida National Guard members completed demographic and trauma/injury questionnaires, as well as the Neurobehavioral Symptom Inventory (NSI) and PTSD Checklist-Civilian Version (PCL-C). The NSI and PCL-C were subjected to a multiple-step cluster analytic process (i.e., Two-step, followed by Hierarchical and K-means). The two-step cluster analysis suggested either a two or three cluster solution. Hierarchical cluster analysis, using the Ward's method and the Pearson correlation as the proximity measure, was used to reexamine the number of clusters. The scree test suggested a two-cluster solution. Final cluster membership was determined by a K-means iterative partitioning using Euclidean distance. Results: “Distressed” and “Normal” subtypes were identified. Individuals in the “Normal” cluster (87.6%) endorsed low levels of all postconcussive and PTSD symptoms. The “Distressed” cluster (12.4%) was characterized by elevations on all subdomains...

Article PDF first page preview

Article PDF first page preview
Article PDF first page preview
You do not currently have access to this article.