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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Impact of sunlight on the age of onset of bipolar disorder
Bipolar Disorders, Volume 14, No. 6, Year 2012
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Description
Objective: Although bipolar disorder has high heritability, the onset occurs during several decades of life, suggesting that social and environmental factors may have considerable influence on disease onset. This study examined the association between the age of onset and sunlight at the location of onset. Method: Data were obtained from 2414 patients with a diagnosis of bipolar I disorder, according to DSM-IV criteria. Data were collected at 24 sites in 13 countries spanning latitudes 6.3 to 63.4 degrees from the equator, including data from both hemispheres. The age of onset and location of onset were obtained retrospectively, from patient records and/or direct interviews. Solar insolation data, or the amount of electromagnetic energy striking the surface of the earth, were obtained from the NASA Surface Meteorology and Solar Energy (SSE) database for each location of onset. Results: The larger the maximum monthly increase in solar insolation at the location of onset, the younger the age of onset (coefficient= -4.724, 95% CI: -8.124 to -1.323, p=0.006), controlling for each country's median age. The maximum monthly increase in solar insolation occurred in springtime. No relationships were found between the age of onset and latitude, yearly total solar insolation, and the maximum monthly decrease in solar insolation. The largest maximum monthly increases in solar insolation occurred in diverse environments, including Norway, arid areas in California, and Chile. Conclusion: The large maximum monthly increase in sunlight in springtime may have an important influence on the onset of bipolar disorder. © 2012 John Wiley and Sons A/S.
Authors & Co-Authors
Bauer, Michael
Germany, Dresden
Technische Universität Dresden
Glenn, Tasha
United States, Fullerton
Chronorecord Association
Alda, Martin
Canada, Halifax
Dalhousie University
Andreassen, Ole Andreas
Norway, Oslo
Oslo Universitetssykehus
Ardau, Raffaella
Unknown Affiliation
Bellivier, Frank
France, Paris
Inserm
Berk, Michael
Australia, Geelong
Deakin University
Bjella, Thomas Doug
Norway, Oslo
Oslo Universitetssykehus
Bossini, Letizia
Italy, Siena
Dipartimento Di Scienze Mediche, Chirurgiche e Neuroscienze
Del Zompo, Maria
Italy, Cagliari
Università Degli Studi Di Cagliari
Dodd, Seetal M.
Australia, Geelong
Deakin University
Fagiolini, Andrea M.
Italy, Siena
Dipartimento Di Scienze Mediche, Chirurgiche e Neuroscienze
Frye, Mark A.
United States, Rochester
Mayo Clinic
González-Pinto, Ana María
Spain, Madrid
Centro de Investigación Biomédica en Red de Salud Mental
Henry, Chantal
France, Creteil
Université Paris-est Créteil Val de Marne
Kapczinski, Flávio Pereira
Brazil, Porto Alegre
Hospital de Clinicas de Porto Alegre
Kliwicki, Sebastian
Poland, Poznan
Poznan University of Medical Sciences
König, Barbara
Austria, Wiener Neustadt
Bipolar Zentrum Wiener Neustadt
Kunz, Maurício
Brazil, Porto Alegre
Hospital de Clinicas de Porto Alegre
Lafer, Beny
Brazil, Sao Paulo
Universidade de São Paulo
López-Jaramillo, Carlos Alberto
Colombia, Medellin
Universidad de Antioquia
Manchia, Mirko
Canada, Halifax
Dalhousie University
Marsh, Wendy K.
United States, Worcester
University of Massachusetts Chan Medical School
Martínez-Cengotitabengoa, M.
Spain, Madrid
Centro de Investigación Biomédica en Red de Salud Mental
Melle, Ingrid S.
Norway, Oslo
Oslo Universitetssykehus
Morken, Gunnar
Norway, Trondheim
Norges Teknisk-naturvitenskapelige Universitet
Muñoz, Rodrigo A.
United States, La Jolla
University of California, San Diego
Nery, Fabiano Gonçalves
Brazil, Sao Paulo
Universidade de São Paulo
O'Donovan, Claire
Canada, Halifax
Dalhousie University
Pfennig, Andrea
Germany, Dresden
Technische Universität Dresden
Quiroz, Danilo
Unknown Affiliation
Rasgon, Natalie L.
United States, Stanford
Stanford University School of Medicine
Reif, Andreas
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Rybakowski, Janusz K.
Poland, Poznan
Poznan University of Medical Sciences
Sagduyu, Kemal
United States, Kansas City
Umkc School of Medicine
Simhandl, Christian
Austria, Wiener Neustadt
Bipolar Zentrum Wiener Neustadt
Torrent, Carla
Spain, Barcelona
Institut D'investigacions Biomèdiques August pi I Sunyer - Idibaps
Vieta, Eduard
Spain, Barcelona
Institut D'investigacions Biomèdiques August pi I Sunyer - Idibaps
Zetin, Mark M.
United States, Orange
Chapman University
Whybrow, Peter C.
United States, Los Angeles
University of California, Los Angeles
Statistics
Citations: 38
Authors: 40
Affiliations: 25
Identifiers
Doi:
10.1111/j.1399-5618.2012.01025.x
ISSN:
13995618
Research Areas
Health System And Policy
Mental Health