» Articles » PMID: 19341318

Poisson Variations of the Sex Ratio at Birth in African Demographic Surveys

Overview
Journal Hum Biol
Specialty Social Sciences
Date 2009 Apr 4
PMID 19341318
Citations 8
Authors
Affiliations
Soon will be listed here.
Abstract

Variations of the sex ratio at birth (SRB) were investigated using maternity history data collected in demographic surveys conducted in sub-Saharan Africa. Thirty-three countries were covered, totaling about 2.0 million births. The average SRB was 1.034 and varied by ethnicity, birth order, and maternal age. The effect of maternal age was significant for younger mothers (12-19 years old) and older mothers (40-49 years old), with a decline in sex ratios with increasing maternal age in both cases. The effect of birth order was significant only for the 20-39-year-old women, with a decline in sex ratio with increasing birth order. These two effects were similar for the three main population groups identified: populations from southern, eastern, and central Africa (SRB = 1.015), populations from West Africa and Sahelian countries (SRB = 1.040), and populations from Nigeria and Ethiopia (SRB = 1.087). In contrast, no effect of marital duration was found.

Citing Articles

Maternal hepatitis B status and Sex at birth: A cross-sectional study in a Ghanaian population.

Banyeh M, Woli M, Mayeem B, Kolekang A, Nukpezah R, Habib N Heliyon. 2024; 10(10):e31566.

PMID: 38818178 PMC: 11137505. DOI: 10.1016/j.heliyon.2024.e31566.


Predictors of neonatal mortality in Ghana: evidence from 2017 Ghana maternal health survey.

Adongo E, Ganle J BMC Pregnancy Childbirth. 2023; 23(1):556.

PMID: 37533034 PMC: 10394848. DOI: 10.1186/s12884-023-05877-y.


Estimation and probabilistic projection of levels and trends in the sex ratio at birth in seven provinces of Nepal from 1980 to 2050: a Bayesian modeling approach.

Chao F, Kc S, Ombao H BMC Public Health. 2022; 22(1):358.

PMID: 35183138 PMC: 8858562. DOI: 10.1186/s12889-022-12693-0.


Systematic assessment of the sex ratio at birth for all countries and estimation of national imbalances and regional reference levels.

Chao F, Gerland P, Cook A, Alkema L Proc Natl Acad Sci U S A. 2019; 116(19):9303-9311.

PMID: 30988199 PMC: 6511063. DOI: 10.1073/pnas.1812593116.


The Sex Ratio at Birth for 5,338,853 Deliveries in China from 2012 to 2015: A Facility-Based Study.

Huang Y, Tang W, Mu Y, Li X, Liu Z, Wang Y PLoS One. 2016; 11(12):e0167575.

PMID: 27941978 PMC: 5152891. DOI: 10.1371/journal.pone.0167575.