Document Detail

Birth order in a contemporary sample of gay men.
MedLine Citation:
PMID:  10948724     Owner:  NLM     Status:  MEDLINE    
The birth order of a contemporary North American sample of 97 gay men was quantified using Slater's Index. For the 84 probands with at least one sibling, the results showed a late mean birth order compared with the expected value of .50. Additional birth order indices derived from Slater's Index suggested that the mean later birth order was accounted for more strongly by the proband's number of older brothers than by his number of older sisters. The present findings constitute a replication of a series of recent studies and add to the growing body of evidence that birth order is a reliable correlate of sexual orientation in males.
D W Purcell; R Blanchard; K J Zucker
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of sexual behavior     Volume:  29     ISSN:  0004-0002     ISO Abbreviation:  Arch Sex Behav     Publication Date:  2000 Aug 
Date Detail:
Created Date:  2000-12-21     Completed Date:  2000-12-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  1273516     Medline TA:  Arch Sex Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  349-56     Citation Subset:  IM    
Department of Psychology, Emory University, Atlanta, Georgia, USA.
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MeSH Terms
Birth Order*
Homosexuality, Male / statistics & numerical data*
Middle Aged
Reproducibility of Results
Sexual Behavior

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