郑州大学学报（医学版）2017，Vol.52Issue(3)：268-271,4.DOI:10.13705/j.issn.1671-6825.2017.03.007
中国人口出生性别比空间聚集性及影响因素
Analysis on spatial cluster and influencing factors of the sex ratio at birth in China
摘要
Abstract
Aim: To explore the influencing factors of sex ratio at birth(SRB) in China by spatial regression model.Methods: The number of male and female infants and the economic, educational and health data of 31 provinces in China in 2010 were collected, and multiple linear regression model and spatial regression model were fitted.Results: Spatial correlation analysis showed there was spatial cluster of SRB in China(Moran′s I=0.281,Z=4.093,P<0.001).Multiple linear regression model and spatial regression model both showed that the proportion of minorities′ population, average beds per one thousand people, birth rate and the rate of the second child or above were the influencing factors of SRB.β of the four factors fitted by multiple linear regression were-0.201,-6.237,2.458 and-0.507(P<0.05), and R2 was 0.760.Those fitted by spatial regression model were-0.199,-6.314,2.451 and-0.504, and R2 was 0.816(P<0.05).Conclusion: Spatial cluster of SRB in China exists.The influencing factors of SRB in China include proportion of minorities′ population, average beds per one thousand people, birth rate and the rate of the second child or above.关键词
出生性别比/空间回归/影响因素/中国Key words
sex ratio at birth/spatial regression/influencing factor/China分类
医药卫生引用本文复制引用
靳慧鸣,毛赛彩,王莹,施学忠,杨永利..中国人口出生性别比空间聚集性及影响因素[J].郑州大学学报（医学版）,2017,52(3):268-271,4.基金项目
河南省教育厅科学技术研究重点项目 14B330004 （）
