Published in
Springer Nature [academic journals on nature.com], Molecular Psychiatry, 2(18), p. 190-194, 2012
DOI: 10.1038/mp.2012.26
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- Springer Nature [academic journals on nature.com] | PDF
- [www.ncbi.nlm.nih.gov] | PDF
- [www.research.ed.ac.uk] | PDF
- [www.pure.ed.ac.uk] | PDF
- [europepmc.org] | PDF
- [www.ncbi.nlm.nih.gov] | PDF
- [www.ncbi.nlm.nih.gov] | PDF
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Is bipolar disorder more common in highly intelligent people? A cohort study of a million men
,
David J. Porteous,
Ian J. Deary,
Finn Rasmussen
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Abstract
Anecdotal and biographical reports have long suggested that bipolar disorder is more common in people with exceptional cognitive or creative ability. Epidemiological evidence for such a link is sparse. We investigated the relationship between intelligence and subsequent risk of hospitalisation for bipolar disorder in a prospective cohort study of 1,049,607 Swedish men. Intelligence was measured on conscription for military service at a mean age of 18.3 years and data on psychiatric hospital admissions over a mean follow-up period of 22.6 years was obtained from national records. Risk of hospitalization with any form of bipolar disorder fell in a stepwise manner as intelligence increased (p for linear trend