A prospective study of postpartum psychoses in a high-risk group. 3. Relationship to mental health characteristics during pregnancy.

Within a sample of 88 pregnant women with a history of nonorganic psychosis, mental health characteristics during pregnancy, assessed prospectively through interviews and psychiatric records, were studied in relationship to the development of 25 postpartum psychotic episodes (PPPs) occurring during the first 6 months postpartum. Cases with PPP onset within 3 weeks of delivery (mostly affective or cycloid psychoses) evidenced more frequent tension-anxiety and excitement at interviews during pregnancy than did diagnostically comparable cases not developing PPPs. Cases with PPP onset later than 3 weeks postpartum (mostly schizophrenic-like psychoses) were not more frequently disturbed than were diagnostically comparable cases not developing PPPs. An absence of both affective symptoms and common fears represented a sign of increased PPP-risk in these later onset cases. The subsample of actively disturbed cases who were in contact with a psychiatrist during pregnancy were at notably increased risk for a PPP during the total 6-month period.