Studies in western cultures have proposed mechanisms by which adverse childhood experiences can affect mental health, including mediating variables such as social support and resilience. However, research replicating these findings in perinatal populations are sparse in Asia. This study assessed the association between lifetime trauma and postpartum depressive symptoms. Additionally, the study examined the mediating role that resilience and social support can play in this association. This study was conducted on 458 women participating in the PRAMMS cohort in urban Bangalore. Information on lifetime trauma was collected through a culturally appropriate trauma interview and postpartum depressive symptoms (8 weeks) were assessed using the Edinburgh Postnatal Depression Scale (EPDS). Resilience was assessed using the Connor-Davidson Resilience Scale-10 and social support was assessed through the Zimet's Multidimensional Scale of Perceived Social Support. A linear model was used to measure the association between lifetime trauma and postpartum depression and mediation analysis was used to assess the role of resilience and social support in the primary association. All analyses were conducted using SPSS. In this cohort, 254 women reported at least one trauma and 204 reported no trauma. A higher number of lifetime traumatic events was associated with higher EPDS scores (β = 0.487, 95%CI: 0.267-0.707). Social support was found to have a negative association between the predictor and the outcome; however, resilience was not a statistically significant mediator. Lifetime trauma was associated with postpartum depressive symptoms in our study and social support negatively mediated the association between lifetime trauma and postpartum depressive symptoms.
Keywords: Adverse childhood experiences (ACE); Mental health; Perinatal health; Postpartum depression; Trauma.