摘要
文章描述性地分析了一组被访高龄老人的生育时间、生育数量、子女的胎次排列与出生婴儿性别比的关系。主要分析结果说明,出生于这组高龄老人的子女的性别比明显高于正常的出生婴儿性别比的上限;低胎次的婴儿性别比高于高胎次的婴儿性别比;出生婴儿性别比受来自不同育龄妇女年龄组的生育数量的一定影响。
The article analyzes descriptively relationships between sex ratio at birth and the age of mothers giving births, their level of fertility, and the periods of births that happened among children as reported by a group of elderly people. The results show that the sex ratio at birth is higher than the upper limit of the normal accepted range. There is a tendency that the lower the birth order, the higher the sex ratio. The ratio seems to be affected by the number of births in each age group among women in their reproductive age.
出处
《北京大学学报（哲学社会科学版）》
CSSCI
北大核心
2004年第4期103-109,共7页
Journal of Peking University(Philosophy and Social Sciences)
