| Season of birth and schizophrenia in Northeast Brazil: relationship to rainfall. | |
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MedLine Citation:
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PMID: 17102713 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Although the association of schizophrenia and winter birth has been replicated many times in the Northern hemisphere, studies in the Southern hemisphere have been less consistent in their findings. A study from NE Brazil indicated the period between May and July, 3 months after the peak in rainfall, as a risk period for schizophrenia birth. We report findings from a random selection of charts (N = 1789) from the only public inpatient psychiatric facility in Ceará, Brazil (2 degrees to 5 degrees S). We compared the seasonality of birth in the schizophrenia group (N = 406) to multiple control groups: (1) psychosis not otherwise specified (N = 868), (2) other psychiatric diagnoses (N = 515), and (3) the average monthly birth rate in the general population. Patients with schizophrenia had a significantly greater risk of being born in the risk period compared with any of the control groups. There is a significant association between rainfall in a month and schizophrenia births 3 (p = 0.03) and 4 months (p = 0.01) later. This study corroborates findings of a significant seasonality in schizophrenia births in northeast Brazil. |
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Authors:
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Erick Messias; Carine Mourao; Juliana Maia; Joao Paulo Mendes Campos; Kersia Ribeiro; Luciana Ribeiro; Brian Kirkpatrick |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of nervous and mental disease Volume: 194 ISSN: 0022-3018 ISO Abbreviation: J. Nerv. Ment. Dis. Publication Date: 2006 Nov |
Date Detail:
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Created Date: 2006-11-14 Completed Date: 2006-12-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0375402 Medline TA: J Nerv Ment Dis Country: United States |
Other Details:
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Languages: eng Pagination: 870-3 Citation Subset: AIM; IM |
Affiliation:
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School of Medicine, Federal University of Ceará, Fortaleza CE, Brazil. emessias@jhsph.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Birth Rate Brazil / epidemiology Climate Humans Rain* Schizophrenia / epidemiology* Seasons* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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