
Am J Psychiatry 163:1549-1553, September 2006
doi: 10.1176/appi.ajp.163.9.1549
© 2006 American Psychiatric Association
Familiality of Postpartum Depression in Unipolar Disorder: Results of a Family Study
Liz Forty, B.A.,
Lisa Jones, Ph.D.,
Stuart Macgregor, Ph.D.,
Sian Caesar,
Caroline Cooper, B.Sc.,
Andrea Hough, B.A.,
Laura Dean, B.Sc., M.Sc.,
Subodh Dave, M.R.C.Psych.,
Anne Farmer, F.R.C.Psych., Ph.D.,
Peter McGuffin, F.R.C.Psych., Ph.D.,
Shyama Brewster, B.Sc.,
Nick Craddock, F.R.C.Psych., Ph.D., and
Ian Jones, M.R.C.Psych., Ph.D.
OBJECTIVE: The authors previously reported strong evidence for familial aggregation of postpartum (puerperal) psychotic episodes in women with bipolar disorder. The authors here examine whether vulnerability to postpartum triggering of depressive episodes aggregates in families and assess how this aggregation varies with the definition of postpartum onset. METHOD: Postpartum depression occurrence was studied in the female members of 120 sibling pairs recruited at a site within an international multicenter study of sibling pairs with recurrent unipolar depression. Employing a range of definitions of postpartum onset, the authors examined concordance for postpartum episode status between sisters. RESULTS: Episodes of depression with onset within 4 weeks of delivery clustered in families, but there was no significant evidence of familial clustering of broadly defined postpartum depression (onset within 6 months). Among women with a family history of narrowly defined postpartum episodes, 42% experienced depression following their first delivery, whereas only 15% of women with no such family history experienced depression following first delivery. The evidence for familiality maximized with a postpartum onset definition of 68 weeks. CONCLUSIONS: These results implicate familial factors in susceptibility to the triggering of narrowly defined postpartum depressive episodes in women with recurrent major depression. They suggest that a postnatal onset definition of within 68 weeks of delivery may be optimal in studies of the triggering of depressive illness by childbirth.
This article has been cited by other articles:

|
 |

|
 |
 
I. Jones, M. Hamshere, J.-M. Nangle, P. Bennett, E. Green, J. Heron, R. Segurado, D. Lambert, P. Holmans, A. Corvin, et al.
Bipolar Affective Puerperal Psychosis: Genome-Wide Significant Evidence for Linkage to Chromosome 16
Am J Psychiatry,
July 1, 2007;
164(7):
1099 - 1104.
[Abstract]
[Full Text]
[PDF]
|
 |
|
Get information about faster international access.
a>
Privacy Policy
Copyright © 2006
American Psychiatric Association.
All rights reserved.
Home
| Search
| Current Issue
| Past Issues
| Subscribe
| All APPI Journals
| Help
| Contact Us
|