Factors associated with postpartum depression in women from low socioeconomic level in Argentina: A hierarchical model approach.

Purpose: to estimate the prevalence of depression at 4-week postpartum using the Edinburgh postpartum Depression Scale (EPDS) in women who delivered in a public maternity hospital in Argentina.

Methods: This prospective cohort study was carried out from March to August 2016 in northwest Argentina. Eligibility included delivering a singleton live birth 28 weeks of gestational age or over, 18 years or older and resided within 1h from the maternity hospital.