Results from regression analyses investigating relationship between post-deployment symptoms and gray matter volume.

Note: Gray matter volume determined using FSL implementation of voxel-based morphometry. Average t statistics and unstandardized regression coefficients were extracted for significant clusters of activation. Analyses were partial regressions investigating main effects of each predictor with N = 29 combat veterans from Operation Iraqi Freedom or Operation Enduring Freedom (OIF/OEF). CAPS = Clinician Administered PTSD Scale; AUDIT = Alcohol Use Identification Test.