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Lookup NU author(s): Professor Heinz Grunze
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ObjectiveEarly-onset bipolar (BP) disorder and other poor prognosis characteristics are more prevalent in patients from the United States than from the Netherlands and Germany (abbreviated as Europe). We explored the impact of parental loading for affective illness on onset and other characteristics of BP disorder.MethodParental history for unipolar (UP) and bipolar (BP) depression and course of illness characteristics were obtained from self-report in adults (average age 42) with BP disorder. Illness characteristics were examined by chi(2) and multinomial logistic regression in relationship to the degree of parental loading: i) both parents negative; ii) one UP disorder; iii) one with BP disorder; and iv) both affected.ResultsAfter controlling for many poor prognosis factors, compared with those from Europe, patients from the United States had more iii) one parent with BP disorder and iv) both parents affected. An early age of onset of BP disorder was independently associated with this increased parental loading for affective disorder.ConclusionParental history of BP disorder and both parents with a mood disorder were more common in the United States than Europe and were associated with an early onset of bipolar disorder and other poor prognosis characteristics. These findings deserve replication and exploration of the potential mechanisms involved and their therapeutic implications.
Author(s): Post RM, Leverich GS, Kupka R, Keck P, McElroy S, Altshuler L, Frye MA, Luckenbaugh DA, Rowe M, Grunze H, Suppes T, Nolen WA
Publication type: Article
Publication status: Published
Journal: Acta Psychiatrica Scandinavica
Year: 2014
Volume: 129
Issue: 5
Pages: 375-382
Print publication date: 01/05/2014
Online publication date: 19/10/2013
Acceptance date: 13/09/2013
ISSN (print): 0001-690X
ISSN (electronic): 1600-0447
Publisher: Wiley-Blackwell
URL: http://dx.doi.org/10.1111/acps.12208
DOI: 10.1111/acps.12208
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