The naturally occurring male-to-female (M/F) ratio at birth is 1.05. Higher ratios found primarily in countries across Asia have been attributed to prenatal sex selection due to son preference. There is growing evidence that sex-selective practices continue following migration; however, little is known about these practices following migration to Australia.

中文翻译：

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澳大利亚移民人口中的男性偏见性别比：一项基于人口的1999-2015年出生的11912250例出生的研究

出生时自然发生的男女比例为1.05。主要在亚洲国家中发现的较高比率归因于儿子偏爱的产前性别选择。越来越多的证据表明，迁移后性别选择习俗继续存在；但是，在移居澳大利亚后对这些做法知之甚少。