sex ratio

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Related to Birth ratio: Total fertility rate

sex ratio

[′seks ‚rā·shō]
(biology)
The relative proportion of males and females in a population.
References in periodicals archive ?
Declining Minamata male birth ratio associated with increased male fetal death due to heavy methylmercury pollution.
There was no significant difference in the birth ratio of infants born to exposed and unexposed mothers (del Rio Gomez et al.
Replacing Myths with Facts" presents a review of existing studies on birth ratios and disproves myths about the practice of sex-selective abortion in the Asian American community.
This article compares legal frameworks governing sex selection, attitudes to sex selection, birth ratios of girls and boys, and the social and economic status of women in China, India, Canada and Germany, to assess the reasons for prohibitions on sex selection.
She might have added that in China, India, and several other south-Asian and Arab nations the unemployed youth situation will be exacerbated by the unusually high current birth ratios of males to females.
He cited a study suggesting "evidence of a clear son preference among south-east Asian immigrants to Canada", with male-biased birth ratios among Chinese, Korean and Indian parents.