Declines in Sex Ratio at Birth and Fetal Deaths in Japan, and in U.S. Whites but Not African Americans

BACKGROUND: The expected ratio of male to female births is generally believed to be 1.05, also described as the male proportion of 0.515. OBJECTIVES: We describe trends in sex ratio at birth and in fetal deaths in the United States, in African Americans and in whites, and in Japan, two industrial co...

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Detalles Bibliográficos
Autores principales: Davis, Devra Lee, Webster, Pamela, Stainthorpe, Hillary, Chilton, Janice, Jones, Lovell, Doi, Rikuo
Formato: Texto
Lenguaje:English
Publicado: National Institute of Environmental Health Sciences 2007
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1892130/
https://www.ncbi.nlm.nih.gov/pubmed/17589604
http://dx.doi.org/10.1289/ehp.9540

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