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Hum. Reprod. Advance Access originally published online on January 4, 2007
Human Reproduction 2007 22(4):1192-1193; doi:10.1093/humrep/del475
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© The Author 2006. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Letters to the editor

The human sex ratio in New York City did not change after 11 September 2001

Stian Lydersen1

Unit for Applied Clinical Research, Department of Cancer Research and Molecular Medicine, The Norwegian University of Science and Technology (NTNU), The Cancer Building, 5th floor, St Olavs Hospital, N-7006 Trondheim, Norway

1 To whom correspondence should be addressed at:E-mail: stian.lydersen@ntnu.no

The first 10% of the full text of this article appears below.

Sir,

In a recent article in this journal, Catalano et al. (2006)Go state in their summary that the sex ratio (odds of a male birth) decreased significantly (i.e. P < 0.01, two-tailed test) in New York City after 11 September 2001. First, the P-value quoted in the summary . . . [Full Text of this Article]


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