Experience of pregnancy and delivery as predictors of postpartum depression.

This research examined experiences of pregnancy and delivery as predictors of three subscales identified within the Edinburgh Postnatal Depression Scale (nonspecific depression, anhedonia, and anxiety). Mothers of babies under 1 year (N = 415) completed the Edinburgh Postnatal Depression Scale (EPDS) and gave information as to number of pregnancies, number of children, and their ratings of the difficulty of the course of pregnancy and delivery. Number of pregnancies and number of children did not predict scores on any of these subscales. Difficulty in the course of pregnancy was a significant positive predictor of nonspecific depression, and difficulty of delivery was a significant positive predictor of anxiety. Neither of these variables significantly predicted anhedonia. These results provide evidence of the heterogeneity of postpartum depression, indicating that risk factors differentially influence subscales of the EPDS.