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Table 1 The association of place of mothers birth for sex ratio at live birth for all births in England and Wales 2007-2011

From: Is the mothers’ country of birth associated with the sex of their offspring in England and Wales from 2007 to 2011?

Region of mother’s birth Number of males born Number of females born Sex Ratio Odds ratio* 95% confidence interval p value
UK 1,375,306 1,304,933 1.054 1 - -
Outside UK 446,166 425,539 1.048 0.995 0.99 – 1.00 0.035
Outside UK divided by continent       
Europe 140 445 133254 1.054 1.00 0.99 - 1.01 0.992
Africa 99 771 96 422 1.035 0.98 0.97 - 0.99 <0.001
The Americas and the Caribbean 29 145 27 435 1.062 1.01 0.99 - 1.02 0.350
Middle East and Asia 167 146 159 299 1.049 1.00 0.99 - 1.00 0.231
Antarctica and Oceania 9 659 9 129 1.058 1.00 0.98 - 1.03 0.790
  1. *The reference group is mothers who were born in the UK.