The association between pregnancy intendedness and experiencing symptoms of postpartum depression among new mothers in the United States, 2009 to 2011: A secondary analysis of PRAMS data.

Postpartum depression (PPD) is a form of major depressive disorder affecting approximately 13% of women worldwide. Unintended pregnancies, reaching close to 50% of the pregnancies in the United States, have become a major health concern. While many physiologic and psychosocial causes have been analyzed, few studies have examined the relationship between unintended pregnancy and symptoms of PPD.