Parental age gap skews child sex ratio

被引：30

作者：

Manning, JT

Anderton, RH

Shutt, M

机构：

[1] Population Biology Research Group,

[2] School of Biological Sciences,undefined

[3] University of Liverpool,undefined

来源：

NATURE | 1997年 / 389卷 / 6649期

关键词：

D O I：

10.1038/38647

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The proportion of male to female births increases during and shortly after periods of war1,2. We show that the age difference between parents (age of husband−age of wife) predicts the sex of the first child. We also find that in England and Wales, the mean spouse age difference increased during and immediately after the two World Wars and was strongly correlated with the sex ratio during the period 1911-52.

引用

页码：344 / 344

页数：1

共 7 条

[1]

BROMWICH P, 1989, PROG OBSTET GYNAECOL, V7, P217

[2] SEX-RATIO VARIATION IN MAMMALS [J].