[Risk factors for post partum depression].

Background: Postpartum depression (PPD) is a public health problem with high prevalence in Chile. Many factors are associated with PPD.
Aim: To analyze the factors associated with the incidence of depressive symptoms (SD) in women with low obstetric risk.
Material and Methods: Cross-sectional analytical study on a sample of 105 postpartum women with low obstetric risk assessed by the Edinburgh Depression Scale at the eighth week postpartum.
Results: A 37% prevalence of depressive symptoms was found. Univariate analysis showed that the perception of family functioning, overcrowding and number of siblings, were significantly associated with postpartum depressive symptoms. A multiple regression model only accepted family functioning as a predictor of depression.
Conclusions: Perception of family functioning was the only variable that explained in part the presence of depressive symptoms in women with low obstetric risk.