The recent article by Harlow and colleagues1 undoubtedly adds to our understanding of the risk factors for severe postpartum disorders. The study reaffirms that women with a history of psychiatric admission are vulnerable to further episodes in relation to childbirth and finds that the number of previous episodes and time since last admission are important in determining the magnitude of an individual's risk.
Jones I, Heron J, Blackmore ER, Craddock N. Incidence of Hospitalization for Postpartum Psychotic and Bipolar Episodes. Arch Gen Psychiatry. 2008;65(3):356. doi:10.1001/archpsyc.65.3.356-a