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Are sociodemographic factors and year of delivery associated with hospital admission for postpartum psychosis? A study of 500,000 first-time mothers.

Nager A, Johansson LM, Sundquist K

Karolinska Institute, Center for Family Medicine, Stockholm, Sweden.

OBJECTIVE: To examine the association between first hospital admissions due to postpartum psychosis and the explanatory variables age, educational level, marital status and year of delivery. METHOD: All Swedish first-time mothers (n = 502,767) were included during a 12-year period and followed for first hospital admissions due to postpartum psychosis. Cox regression was used to estimate hazard ratios, adjusted for the explanatory variables. RESULTS: Older age and being a single mother implied an increased risk of first hospital admissions due to postpartum psychosis among first-time mothers. Educational level was not associated with first hospital admissions due to postpartum psychosis. During the 1990s, when a reduction in psychiatric beds occurred, first hospital admissions due to postpartum psychosis decreased significantly. CONCLUSION: Certain sociodemographic factors are associated with first hospital admissions due to postpartum psychosis. Untreated postpartum psychosis due to fewer psychiatric beds could have hazardous effects on mothers and their children.

Published 14 June 2005 in Acta Psychiatr Scand, 112(1): 47-53.
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