Sex Ratios at Birth in African Populations: A Review of Survey Data

@article{Garenne2002SexRA,
  title={Sex Ratios at Birth in African Populations: A Review of Survey Data},
  author={Michel Garenne},
  journal={Human Biology},
  year={2002},
  volume={74},
  pages={889 - 900}
}
  • M. Garenne
  • Published 2002
  • Medicine, Biology
  • Human Biology
This study analyzes the distribution of sex ratio at birth in African populations using data collected in birth histories in sample demographic surveys (Demographic and Health Surveys and World Fertility Surveys). The average sex ratio from 56 surveys, totaling 1.130 million births, was 1.033 (95% CI, 1.029-1.037), significantly different from the world average of 1.055. The distribution of sex ratios across surveys was found to be heterogeneous, and different from what could have been expected… Expand
Poisson Variations of the Sex Ratio at Birth in African Demographic Surveys
TLDR
Variations of the sex ratio at birth (SRB) were investigated using maternity history data collected in demographic surveys conducted in sub-Saharan Africa, finding the effect of maternal age was significant for younger mothers and older mothers, with a decline in sex ratios with increasing maternal age in both cases. Expand
Variations in sex ratios estimated from census and survey data in Zambia, 1969–2014
TLDR
It was found that sex ratio imbalances in Zambia were largely due to data deficiencies due to age misreporting and under-enumeration, and understanding the demographic pattern of sex ratios in a population is relevant for policies to improve the quality of data collection systems, and socioeconomic development planning, for the young age group population, which is prone under-Enumeration. Expand
THE ENIGMA OF ETHIOPIAN SEX RATIOS AT BIRTH
  • M. Garenne
  • Medicine, Geography
  • Journal of Biosocial Science
  • 2016
TLDR
The high value of the sex ratio at birth in Ethiopia could be explained by poverty, used as a proxy for poor nutritional status, and in multivariate analysis, the effects of living in urban areas and of maternal education were less important than household wealth. Expand
SEX RATIO AT BIRTH AND FAMILY COMPOSITION IN SUB-SAHARAN AFRICA: INTER-COUPLE VARIATIONS
  • M. Garenne
  • Biology, Medicine
  • Journal of Biosocial Science
  • 2009
TLDR
Using Demographic and Health Survey (DHS) maternity histories from sub-Saharan Africa, the study shows that the sex ratio at birth increases with the number of previous male births and decreases with thenumber of previous female births. Expand
Human sex ratio at birth in South West Nigeria
TLDR
These findings are representative of the populations in southwest Nigeria and are comparable to values obtained for other regions in Nigeria and other populations of African origin. Expand
An Increase in the Sex Ratio of Births to India‐born Mothers in England and Wales: Evidence for Sex‐Selective Abortion
TLDR
It is found that male preference in different cultures does not necessarily lead to sex-selective abortion among mothers born in India and living in Britain, which is inconsistent with previous suggestions that Asian populations have a higher "natural" sex ratio at birth. Expand
Explaining the Rapid Increase in Nigeria's Sex Ratio at Birth: Factors and Implications.
  • A. Kaba
  • Geography, Medicine
  • African journal of reproductive health
  • 2015
This paper examines the rapid increase in Nigeria's sex ratio at birth from 1.03 boys born for every 1 girl born in each year from 1996-2008 to 1.06 in each year from 2009-2014, second only toExpand
Is the human sex ratio at birth a sentinel health indicator that is associated with HIV/AIDS and tuberculosis prevalences in the 21st century?
TLDR
The data are consistent with the hypothesis that a reduced sex ratio at live birth is a potential sentinel health indicator of lower population health, however, these data do not demonstrate either a casual relationship or reveal any biological mechanisms that may account for these observations. Expand
Is the mothers’ country of birth associated with the sex of their offspring in England and Wales from 2007 to 2011?
TLDR
There was no evidence of an excess of males born to women from India in England and Wales, and an excess were observed in mothers born in South-East Asia, the Middle East and South America. Expand
Temporal Trends in the Secondary Sex Ratio in Nordic Countries
TLDR
Attempts have been made to identify factors influencing the number of males per 100 females at birth, also called the secondary sex ratio, but no consistent results have emerged. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 17 REFERENCES
Sex ratio of live‐born Hausa infants
TLDR
The present study is unable to identify the factors responsible for the higher sex ratio of Hausa births compared to American blacks. Expand
The sex ratio of Igbo births
  • V. Egwuatu
  • Medicine
  • International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics
  • 1984
TLDR
The study determined that the sex ratio of live‐born infants in the Igbo‐occupied area of Nigeria is about 1.04, lower than the 1.03 reported for Zaire and for the black populations of the US and the Caribbean, and support the widely held impression that thesex ratio at birth is influenced by geographical and genetic distribution. Expand
The Effect of Polygyny on Sex Ratio at Birth
Ethnographic data from Kenyan communities show that the sex ratio at birth is influenced by the rate and timing of coitus which is itself affected by the form of marriage. This situation leads toExpand
Some factors affecting the secondary sex ratio in a Latin American sample.
TLDR
A sample based on hospital birth records from the Latin American Collaborative Study on Congenital Malformations (ECLAMC) was used and it was found that the sex ratio was significantly affected by secular, spatial (countries), biological, biological, and socioeconomic (evaluated by hospital payment) variables. Expand
Paternal effects on the human sex ratio at birth: evidence from interracial crosses.
TLDR
The study shows that the observed racial differences in the sex ratio at birth are due to the effects of father's race and not the mother's, and points to paternal determinants of the human sex ratios at fertilization and/or of the prenatal differential sex survival. Expand
Paternal-age and birth-order effect on the human secondary sex ratio.
  • A. Ruder
  • Biology, Medicine
  • American journal of human genetics
  • 1985
TLDR
Records of United States live births in 1975 were sorted by offspring sex, live birth order, parental races, and, unlike prior studies, ungrouped parental ages to show significant effects of birth order and paternal age on sex ratio in the white race data. Expand
The sex ratios of black births.
  • W. James
  • Biology, Medicine
  • Annals of human biology
  • 1984
TLDR
New data are presented which show that Black births in England and Wales have a remarkably low sex ratio, and claim that large samples of Yoruba and Hausa births should be treated with reserve. Expand
Is maternal malnutrition associated with a low sex ratio at birth?
TLDR
Short maternal stature and obesity were independently related to a low sex ratio at birth in 3282 children born to 684 women from a rural African society, consistent with animal experiments that indicate an adverse effect of maternal malnutrition on male fetuses. Expand
Ten thousand Tonga: a longitudinal anthropological study from southern Zambia 1956-1991.
The Gwembe Study was launched in 1956 to monitor the responses of 57,000 Tonga-speakers from the Middle Zambezi Valley to involuntary relocation. Since then, periodic censuses and frequent fieldExpand
The Agincourt demographic and health study--site description, baseline findings and implications.
OBJECTIVES To present baseline results from first-phase demographic and health surveillance in the Agincourt field site, Bushbuckridge. To contrast findings with international data, and comment onExpand
...
1
2
...