Ownership of Dwelling Affects the Sex Ratio at Birth in Uganda

Author(s)
Bernard Wallner, Martin Fieder, Horst Seidler
Abstract

Background: Socio-economic conditions can affect the secondary sex ratio in humans. Mothers under good environmental conditions are predicted to increase the birth rates of sons according to the Trivers-Willard hypothesis (TWH). This study analyzed the effects of ownership and non-ownership of dwellings on the sex ratio at birth (SRB) on a Ugandan sample.

 

Methodology/Principal Findings: Our investigation included 438,640 mothers aged between 12 and 54 years. The overall average SRB was 0.5008. Mothers who live in owned dwellings gave increased births to sons (0.5019) compared to those who live in non-owned dwellings (0.458). Multivariate statistics revealed the strongest effects of dwelling ownership when controlling for demographic and social variables such as marital status, type of marriage, mothers' age, mothers' education, parity and others.

 

Conclusions/Significance: The results are discussed in the framework of recent plausible models dealing with the adjustment of the sex ratio. We conclude that the aspect of dwelling status could represent an important socio-economic parameter in relation to SRB variations in humans if further studies are able to analyze it between different countries in a comparative way.

Organisation(s)
Department of Evolutionary Anthropology
Journal
PLoS ONE
Volume
7
ISSN
1932-6203
DOI
https://doi.org/10.1371/journal.pone.0051463
Publication date
2012
Peer reviewed
Yes
Austrian Fields of Science 2012
1060 Biology, 211913 Quality assurance
Portal url
https://ucris.univie.ac.at/portal/en/publications/ownership-of-dwelling-affects-the-sex-ratio-at-birth-in-uganda(ae5e9901-cae2-437f-91fc-1bb750d4b6e4).html