Background: : Few investigators have evaluated the association between early pregnancy social support and depression; however, increased social support may improve mental health during pregnancy. Our objective is to examine whether in early pregnancy there is an association between social support and maternal depression among women in Peru. Methods: : 2,062 pregnant women participated in structured interviews. Early pregnancy social support was measured using the Social Support Questionnaire (SSQ-6). We evaluated the number of individuals that participants could turn to in different situations (Social Support Number Score; SSQN) and their satisfaction with support received (Social Support Satisfaction Score; SSQS). Median SSQN and SSQS characterized participants according to high and low levels of support. SSQN family vs. non-family support were also evaluated separately. Antepartum depr...