More boys than girls being born, meaning women's dominance may end

There are 500,000 more females than males in Hong Kong, but that's on course to change because for several years more boys than girls have been born in the city, researchers have found.
The researchers, working in Queen Elizabeth Hospital's obstetrics department, recorded 114 male births for every 100 girls born in 2010.
Since 2005 the imbalance has been exaggerated by the influx of mainland women to give birth, as they are more likely to deliver sons than daughters.
"[The unbalanced sex ratio at birth] will result, after a few decades, in a large excess of men," the report said. "Consequently, many men will be deprived of marriage and parenting, and thus [there will be] adverse effects on the well-being of individuals, societal stability and security."
However, it will take decades for a scarcity of women to manifest itself. The current excess of women over men helps to explain why, in 2011, 98,700 women aged 30 to 34 were unmarried, according to the Census and Statistics Department (CSD).