Document Detail


Association of birth weight and length with air temperature, sunlight, humidity and rainfall in the city of Warsaw, Poland.
MedLine Citation:
PMID:  20813365     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Several studies have shown the month of birth effect on birth weight and height of children. The mechanism of this phenomenon is not fully explained. Using data from Warsaw hospitals, the influence of four climatic factors (temperature, sunlight, humidity and rainfall) on birth outcomes was studied. The sample consisted of 10,631 neonates (5450 boys and 5181 girls) born between May 2004 and April 2005. Individual values for birth weight and length were standardised on the overall mean and standard deviation for all subjects, separately for each sex. Differences in means of Z-score birth outcomes between months, seasons and semi-annual periods of birth were assessed by one-way analysis of variance, separately for each sex. The relation between average values of four atmospheric factors and average neonatal outcomes for each month of birth was assessed by a weighted Spearman rank correlation. The results revealed significant differences in average Z-scores of neonate weight and length between months of birth for boys and girls. Significant seasonal variation in Z-scores means was only found for birth length in boys. The correlation between four atmospheric factors during pregnancy and birth length was the highest for boys and occurred in the second trimester. Second trimester of fetal growth is the period most sensitive to influences of climatic factors.
Authors:
A Siniarska; S Kozieł
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Publication Detail:
Type:  Journal Article     Date:  2010-09-01
Journal Detail:
Title:  Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen     Volume:  61     ISSN:  1618-1301     ISO Abbreviation:  Homo     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374655     Medline TA:  Homo     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  373-80     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier GmbH. All rights reserved.
Affiliation:
Faculty of Biology and Environmental Sciences, Cardinal Stefan Wyszyński University, ul. Woycickiego 1/3, 01-938 Warsaw, Poland.
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