Missed antenatal depression among high risk women: a secondary analysis.

Psychiatrically high-risk women were recruited for a postpartum depression prevention trial. Participants were screened at entry (20-26 weeks gestation) by a psychiatrist prior to receiving randomized treatment. Of the 31 patients who did not complete the study, 10 (33%) were dropped because of diagnosed depression. Only two women developed major depression in the postpartum period. Our data suggests, among high-risk women, obstetric care providers may be overlooking up to one fifth of women with current major depression.