Divergences in sex ratio at birth in US Census Regions due to racial factors: chronic stress and female foeticide

The sex ratio of live births (males/total [M/T]) approximates 0.515. Many factors reduce M/T, and these include stress. Antenatal sexing is used for female foeticide in the setting of male offspring preference. Regional differences and latitude gradients in M/T also occur. This study analysed M/T in...

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Bibliographic Details
Published in:Public health (London) 2023-08, Vol.221, p.170-174
Main Author: Grech, V.
Format: Article
Language:English
Subjects:
African Americans
Asian
Asian Americans
Birth rate/∗trends
Black or African American
Censuses
Female
Humans
Indians, North American
Infant, Newborn
Male
Maternal age
Pregnancy
Race Factors
Sex Ratio
United States
United States - epidemiology
United States/ethnology
Whites
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Summary:The sex ratio of live births (males/total [M/T]) approximates 0.515. Many factors reduce M/T, and these include stress. Antenatal sexing is used for female foeticide in the setting of male offspring preference. Regional differences and latitude gradients in M/T also occur. This study analysed M/T in the US by Census Regions. This was an ecological study. Live births by sex, Census region, state and mother's race were obtained from CDC Wonder (2007–2020). There were 55,453,437 births (M/T 0.5116, 95% confidence interval: 0.5115–0.5118). M/T was Black/African American 
ISSN:0033-3506
1476-5616
DOI:10.1016/j.puhe.2023.06.025