Elucidating the relations between adverse childhood experiences, age of exposure to adversity, and adult posttraumatic stress symptom severity in pregnant women.

Background: Adverse childhood experiences (ACEs) are typically assessed within two subscales: child maltreatment (CM) and household dysfunction (HD). More research is needed about how the CM and HD subscales differentially contribute to adult posttraumatic stress symptoms (PTSS), accounting for additional adversities.
Objective, Participants, and Setting: In a sample of 137 pregnant women exposed to recent intimate partner violence (IPV) in the United States, this study aimed to (1) explore the contributions of ACEs subscales to pregnant women's PTSS severity, (2) examine the inclusion of the witnessing IPV ACE in the CM subscale, and (3) contextualize the contributions of the ACEs subscales to women's PTSS by examining the moderating effect of age of first ACE exposure.
Methods: The study used linear, multiple, and hierarchical regression analyses and the Hotelling-Williams test.
Results: The CM subscale predicted pregnant women's PTSS significantly better than the HD subscale, controlling for past-year IPV (t(134) = 2.69, p = .008). Adding the witnessing IPV ACE to the CM subscale did not significantly improve the subscale's prediction of PTSS (ΔR ²  = 0.07, p = .290). Age of first exposure did not significantly moderate the effects of the CM (β = 0.12, p = .140) or HD (β = -0.10, p = .238) ACEs subscales on PTSS.
Conclusions: Results suggest that for pregnant women exposed to high levels of trauma, polyvictimization and particularly experiencing multiple types of CM have stronger predictive validity for PTSS than HD. Cumulative victimization may be more influential than age of exposure to adversity.
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