First admission with puerperal psychosis: 7–14 years of follow‐up

The aim of this study was to investigate women who had first-episode psychosis within 1 year after parturition. The Danish Psychiatric Central Register and the Danish Medical Birth Register were linked to identify all women admitted for the first time to a psychiatric department in Arhus County with a psychotic episode. Fifty cases were found, giving a frequency of first-episode psychosis within 1 year after delivery of 1 per 1000. First-episode psychotic disease within the first month postpartum occurred in 1 case per 2000 deliveries. The age distribution corresponded to that of the background population, but the cases were primiparous more often than expected. The socioeconomic status was equal to that of a matched control group of obstetric patients. Birth complications did not occur more frequently than expected, but the probands had a higher risk of preterm delivery than the controls. The clinical picture of the index episode was that of manic-depressive psychosis in nearly half of the cases, but no cases of schizophrenia were found. Sixty percent of the patients had a picture of severe depression, and 20% suffered from manic disorder. The follow-up, 7 to 14 years later, was carried out by interviewing the general practitioners. Forty percent of the women had not preserved full working capacity due to mental disorder. Moreover, the follow-up pointed to schizophreniform symptoms at the index episode as a predictor of incapacity to work. Recurrences were very common (60%), especially of the nonpuerperal type, and half of the recurrences belonged to the manic-depressive disorders. Schizophrenia was diagnosed in one case at the follow-up. Cases with exclusively puerperal episodes were rare (4%).