返回信息流选择性流产和一胎政策为主要原因，然而关键应该还是中国重男轻女等传统思想在作怪。
转载自http://www.51xuewen.com/blog/b_aShow.aspx?blog=2W4U&ID=10823
China’s excess males, sex selective abortion, and one child policy: analysis of data from 2005 national intercensus survey
Wei Xing Zhu, professor1, Li Lu, professor and head of department2, Therese Hesketh, senior lecturer3
1 College of Law, Political Science and Public Administration, Zhejiang Normal University, Jinhua, Zhejiang 310347, China, 2 Institute of Social and Family Medicine, Zhejiang University, Hangzhou 310016, China, 3 Centre for International Health and Development, University College London, London WC1N 1EH
Correspondence to: T Hesketh t.hesketh@ich.ucl.ac.uk
Objectives To elucidate current trends and geographical patterns in the sex ratio at birth and in the population aged under 20 in China and to determine the roles played by sex selective abortion and the one child policy.
Design Analysis of household based cross sectional population survey done in November 2005.
Setting All of China’s 2861 counties.
Population 1% of the total population, selected to be broadly representative of the total.
Main outcome measure Sex ratio defined as males per 100 females.
Results 4 764 512 people under the age of 20 were included. Overall sex ratios were high across all age groups and residency types, but they were highest in the 1-4 years age group, peaking at 126 (95% confidence interval 125 to 126) in rural areas. Six provinces had sex ratios of over 130 in the 1-4 age group. The sex ratio at birth was close to normal for first order births but rose steeply for second order births, especially in rural areas, where it reached 146 (143 to 149). Nine provinces had ratios of over 160 for second order births. The highest sex ratios were seen in provinces that allow rural inhabitants a second child if the first is a girl. Sex selective abortion accounts for almost all the excess males. One particular variant of the one child policy, which allows a second child if the first is a girl, leads to the highest sex ratios.
Conclusions In 2005 males under the age of 20 exceeded females by more than 32 million in China, and more than 1.1 million excess births of boys occurred. China will see very high and steadily worsening sex ratios in the reproductive age group over the next two decades. Enforcing the existing ban on sex selective abortion could lead to normalisation of the ratios.
© Zhu et al 2009
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
http://creativecommons.org/licenses/by-nc/2.0/
转载自http://www.51xuewen.com/blog/b_aShow.aspx?blog=2W4U&ID=10823
这是一条镜像帖。来源：北邮人论坛 / english-bar / #44182同步于 2009/4/23
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EnglishBar机器人发帖
调查显示中国男女比例严重失调，男子过剩，女子不足
rogercc
2009/4/23镜像同步12 回复
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9 条回复
是啊
【 在 rogercc (roger) 的大作中提到: 】
: 选择性流产和一胎政策为主要原因，然而关键应该还是中国重男轻女等传统思想在作怪。
: 转载自http://www.51xuewen.com/blog/b_aShow.aspx?blog=2W4U&ID=10823
: China’s excess males, sex selective abortion, and one child policy: analysis of data from 2005 national intercensus survey
: ...................
所以落后地方的男的越来越多。。。啧啧，更不平衡了
【 在 rogercc (roger) 的大作中提到: 】
: 选择性流产和一胎政策为主要原因，然而关键应该还是中国重男轻女等传统思想在作怪。
: 转载自http://www.51xuewen.com/blog/b_aShow.aspx?blog=2W4U&ID=10823
: China’s excess males, sex selective abortion, and one child policy: analysis of data from 2005 national intercensus survey
: ...................
举个例子，10男7女，3个3女顺利配成3对，剩下7男4女或者互相看不上，或者是one way affair，就这样，产生了4个剩女。并且，男女比例失调，不代表上海、北京和深圳这类大城市比例失调，更何况在深圳是女的人数远大于男的，还有是因为在这类大城市，有的是1个男的占据着几个女的~~~
【 在 wfyq 的大作中提到: 】
: 那为什么剩女还那么多涅，一直很不解耶
恩，现在互相鄙视现象严重：）
【 在 mirror 的大作中提到: 】
: 举个例子，10男7女，3个3女顺利配成3对，剩下7男4女或者互相看不上，或者是one way affair，就这样，产生了4个剩女。并且，男女比例失调，不代表上海、北京和深圳这类大城市比例失调，更何况在深圳是女的人数远大于男的，还有是因为在这类大城市，有的是1个男的占据着几个女的~~~
【 在 Tidy 的大作中提到: 】
: 昨天在水木上看到一个囧的。
: 一产妇十小时产不出来，要剖腹，结果婆婆当着亲家的面喊出了“先保孩子，大人再说”
: 结果亲家公上来就给一巴掌。。。
呃...