Research and analysis

Analysis of male to female birth ratios in the UK: 2007 to 2011

An analysis of gender ratios at birth in the UK; published following a request from the Council of Europe Parliamentary Assembly.



This report investigates whether the gender birth ratio in the UK varies by mothers’ country of birth beyond the range that might be expected to occur naturally.

The analysis concludes that when broken down by the mothers’ country of birth, no group is statistically different from the range that we would expect to see naturally occurring.

However, there are significant limitations to what these data can show because there are small numbers of births for most groups. Large differences in birth rates would be needed to identify ratios outside the normal range.

Published 20 May 2013