Sex ratio of live‐born Hausa infants

1 February 1982

journal article
research article
Published by Wiley in BJOG: An International Journal of Obstetrics and Gynaecology

Vol. 89 (2) , 136-141
https://doi.org/10.1111/j.1471-0528.1982.tb04680.x

Abstract

With data from the birth registry of the Katsina Local Government Authority [Nigeria], the sex ratio was calculated for 1,113,313 Hausa children born alive between 1961-1980. The sex ratio was 1.07, which is significantly higher than the usually accepted value (> 1.04) for populations of African origin. There was no seasonal variation or apparent relation to coital frequency or gonadotropin levels. The sex ratio in another set of data comprising 5780 hospital births was 1.17 for normal and 1.31 for complicated deliveries. The sex ratio did not appear to be influenced by maternal age or parity. This set of data point to some selective bias in hospital statistics.

Keywords

This publication has 22 references indexed in Scilit:

MULTIPLE BIRTHS IN HAUSA WOMEN
BJOG: An International Journal of Obstetrics and Gynaecology, 1980
Gender of Infants Conceived on Different Days of the Menstrual Cycle
New England Journal of Medicine, 1979
BIRTH WEIGHT OF HAUSA INFANTS IN NORTHERN NIGERIA
BJOG: An International Journal of Obstetrics and Gynaecology, 1979
The secondary sex ratio in the United States 1969–71: Association with race, parental ages, birth order, paternal education and legitimacy
Annals of Human Genetics, 1976
A multivariate analysis of the relationship between parental age and birth order and the human secondary sex ratio
Journal of Biosocial Science, 1976
Sex ratio in negroes
Annals of Human Biology, 1975
Maternal ABO Groups and the Sex Ratio of Live Births
Human Heredity, 1975
ABO blood groups and sex ratio at birth.
BMJ, 1972
CYCLE DAY OF INSEMINATION, COITAL RATE, AND SEX RATIO
The Lancet, 1971