The role of prenatal posttraumatic stress symptoms among trauma exposed women in predicting postpartum depression.

Research suggests that a history of trauma and prenatal posttraumatic stress symptoms (PTSS) are predictive of postpartum depression (PPD). Pregnant women at risk for PPD are often identified through depression symptom measures, while PTSS also may help to identify those at increased risk. Women who do not endorse depressive symptoms, though experience PTSS, may be missed when screening is exclusively based on depressive symptoms. The current study aimed to determine if prenatal PTSS were associated with PPD at 4- and 12-week postpartum in trauma-exposed women. Pregnant women (N = 230) in their third trimester were assessed for depression and PTSS at pregnancy, 4 and 12 weeks postpartum. Traumatic life events were assessed during pregnancy. Hierarchical regression analyses examined predictors of PPD, including history of depression, number of past traumas, and symptoms from the posttraumatic stress disorder (PTSD) Checklist short-form (PCL-6). At 4 and 12 weeks postpartum, history of trauma and depression did not predict depressive symptoms, however, irritability and unwanted intrusive memories of trauma were predictive of increased depressive symptoms. Prenatal irritability and unwanted memories may be predictive of elevated PPD symptoms. Future research should examine whether these symptoms represent increased risk of postpartum depressive symptoms to improve screening, prevention, and treatment efforts.