Document Detail

Analysis of the seasonal variation of schizophrenic births using a Kolmogorov-Smirnov type statistic.
MedLine Citation:
PMID:  19698516     Owner:  NLM     Status:  In-Data-Review    
Previous studies have shown that schizophrenic patients are more likely to be born in winter or early spring months than the general population. Data on 4,207 patients with a hospital diagnosis of schizophrenia were obtained from a mailed survey to public departments of adult psychiatry in metropolitan France. For each year from 1900 to 1965, the expected monthly number of schizophrenic births was calculated and any seasonal variation of live births in the general population was taken into account. Cumulative distributions of the observed and expected number of schizophrenic births were compared using a Kolmogorov-Smirnov type statistic. The seasonal distribution of schizophrenic births was significantly different from that of the general population (P < 0.01). An excess of schizophrenic births was found in the first half of the year, with a peak in April (+ 13%).
H Verdoux; N Takei; R Cassou de Saint-Mathurin; M Bourgeois
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European psychiatry : the journal of the Association of European Psychiatrists     Volume:  12     ISSN:  0924-9338     ISO Abbreviation:  Eur. Psychiatry     Publication Date:  1997  
Date Detail:
Created Date:  2009-08-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111820     Medline TA:  Eur Psychiatry     Country:  France    
Other Details:
Languages:  eng     Pagination:  111-6     Citation Subset:  -    
Department of Psychiatry, University Victor Segalen Bordeaux-2, Centre Carreire, 121 rue de la Béchade, 33076 Bordeaux cedex, France.
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