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Birth rate

The Male-female Birth Ratio in California and the 1992 April Riots in Los Angeles

Issue: 
DOI: 
10.7727/wimj.2014.338
Pages: 
223–5
Synopsis: 
Stress induces spontaneous abortions that affect male fetuses more than female fetuses. The April 1992 Los Angeles riots constituted six days of civil unrest. This study showed that male births in California State dipped following this event.

ABSTRACT

Accepted: 
23 Mar, 2015
PDF Attachment: 
Journal Sections: 
Journal Authors: 
e-Published: 24 Mar, 2015

The Influence of Migration on Secular Trends in Sex Ratios at Birth in Cuba in the Past Fifty Years

Issue: 
DOI: 
10.7727/wimj.2013.336
Pages: 
368–72
Synopsis: 
This paper highlights a temporal relationship between Cuban migration and male to female live birth ratio (M/F), with M/F dipping in response to the possibility of leaving Cuba, often followed by sharp rises associated with a predominantly male efflux from the country.
ABSTRACT
 
Background: Secular trends have been found in the male-female ratio at birth (M/F: male births divided by total births) in various countries and this ratio is anticipated to approximate 0.515.
Methods: Annual national data for male and female live births in Cuba with contingency tables were obtained from the World Health Organization and analysed.
Revised: 
04 Apr, 2014
Accepted: 
14 Apr, 2014
PDF Attachment: 
Journal Sections: 
Journal Authors: 
e-Published: 05 May, 2014
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