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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual da Paraíba
2003
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| Online Access: | https://www.redalyc.org/articulo.oa?id=50000301 |
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Table of Contents:
- Influence of age gap and parents´ ethnicity on the sex of the first born child Robson Marcelo Rossi Valter Augusto della Rosa Enrico Colosimo Biología age sex Ethnicity Odds Ratio The influence of parents´ age gap and their ethnicity in the determination of the sex of thefirst born child is provided. A descriptive analysis was undertaken and χ² test, associationmeasures and logistic regression were applied to verify the relationship between variables.The chance that a male first child is born from a mother one to ten years older than thefather is twice the chance of parents whose age gap ranges between 0 and 5 years, thefather being the older. Further, the chance of a male first child born from an ethnicallywhite male parent is approximately five times higher than that of an ethnically yellow one 2003 artículo científico 1519-5228 https://www.redalyc.org/articulo.oa?id=50000301 en http://www.redalyc.org/revista.oa?id=500 Revista de Biologia e Ciências da Terra application/pdf Universidade Estadual da Paraíba Revista de Biologia e Ciências da Terra (Brasil) Num.1 Vol.3