FIGURE 2.

Competing models testing mediating effects of PG volume and DHEA levels. (a) Model 1 depicts salivary DHEA levels mediating associations between trauma‐related anxiety, depression, and posttraumatic stress symptoms and anterior and posterior PG volume. (b) Model 2 shows an alternative model whereby anterior and posterior PG volume mediate associations between salivary DHEA levels and anxiety, depression, and posttraumatic stress symptoms. For simplicity, the direct effects from x to y are not shown in (a) or (b) but were tested. In addition, covariates included age, sex, and study site for all variables. Intracranial volume estimates were also a covariate for anterior and posterior PG volume only. x = predictor, m = mediator, y = outcome variable.