This summary reviews evidence comparing the effectiveness of the Edinburgh Postnatal Depression Scale (EPDS) and the Beck Depression Inventory (BDI) in detecting postpartum depression. The EPDS was specifically developed for postpartum women, contains questions relevant to new mothers, and has been shown to more accurately detect postpartum depression compared to the BDI. However, more research is still needed to validate these scales. The EPDS has a recommended cut-off score of 9 in the immediate postpartum period and 3 or higher to detect risk, but using additional anxiety scales can help identify more women with issues. While the BDI has good sensitivity, the EPDS has better positive predictive value. Overall, the EPDS appears