Document Detail

Circannual pattern of autistic births: reanalysis in three ethnic groups.
MedLine Citation:
PMID:  8754264     Owner:  NLM     Status:  MEDLINE    
Seasonal variations in births of autistic subjects have been reported for the United States, Canada, Sweden, Japan, and Israel. Here, data from England, Japan, and Israel are reanalyzed using spectral analysis for the cosine function. A sample of 583 autistic births occurring over 40 years (1947-1989) is meta-analyzed, focusing on rhythmicity. Major periodicities of 17.6, 18.6, and 21.8 years, on which minor periodicities ranging from 2.2 to 4.1 years were superimposed, yielded the best-fitting cosine function to significantly explain variance of autistic birth patterns. It is interesting that the function composed of a major period with several minor periods is remarkably similar in each of the three ethnic groups. In all three countries the acrophases (calculated function) aggregate in the period 1963-1970. In light of this apparent universality of rhythms in autistic births across continents, we call for further investigations into the role of environmental factors, possibly viral pandemics, in the etiology of autism.
A Ticher; A Ring; Y Barak; A Elizur; A Weizman
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Publication Detail:
Type:  Comparative Study; Journal Article; Meta-Analysis    
Journal Detail:
Title:  Human biology     Volume:  68     ISSN:  0018-7143     ISO Abbreviation:  Hum. Biol.     Publication Date:  1996 Aug 
Date Detail:
Created Date:  1996-09-19     Completed Date:  1996-09-19     Revised Date:  2011-04-18    
Medline Journal Info:
Nlm Unique ID:  0116717     Medline TA:  Hum Biol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  585-92     Citation Subset:  IM    
Department of Human Genetics, Sackler Faculty of Medicine, Tel Aviv University, Israel.
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MeSH Terms
Autistic Disorder / epidemiology*
Cross-Cultural Comparison
England / epidemiology
Infant, Newborn
Israel / epidemiology
Japan / epidemiology
Models, Statistical

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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