Will Singaporean women have less of a choice when it comes to their life partner now?
The advance release of the 2010 Census last week showed that there are now less men than women in Singapore, or 974 men for every 1,000 women, against 998 for every 1,000 women in the 2000 Census.
Traditional figures where there were always more newborn girls than boys in Singapore have also been reversed.
As for foreign brides, official figures show that eight out of 10 marriages last year between a citizen and a foreigner involved a local man. Around 7,000 local men married foreign brides in total, mostly from Asian countries.
One demographer, Yap Mui Teng of the Lee Kuan Yew School of Public Policy noted that sons of immigrant families may not have opted for PR because they would have to do national service if they did so, but this was not an issue for girls.
Another factor could be biology, since women tend to outlive men.
There are 20,136 women more than men in the above 65 age band, or 117,457 women to 97,231 men.
One concern was that local women may have more difficulty marrying, and end up remaining single. This was raised by sociologist and Nominated MP Paulin Straghan. The other scenario was that Singapore may lose its female residents to foreign spouses.