法学 >>> 人口学 >>> 人口学原理 人口经济学 人口社会学 人口学说史 人口史 人口地理学 人口生态学 区域人口学 人口系统工程 人口预测学 人口规划学 人口政策学 计划生育学 人口统计学 人口学其他学科
搜索结果: 1-6 共查到人口学 National Survey of Family Growth相关记录6条 . 查询时间(0.125 秒)
This essay is a commentary on a Research Note by James Trussell, Barbara Vaughn and Joseph Stanford entitled "Are All Contraceptive Failures Unintended Pregnancies? Evidence from the 1995 National Sur...
Context: The incidence of unintended pregnancy has long been used as a primary indicator of the state of reproductive health. However, the definitionand therefore the measurementof this indicator ha...
Context: Half of all pregnancies in the United States are unintended. Of these, half occur to women who were practicing contraception in the month they conceived, and others occur when couples stop us...
Context: Unintended pregnancy remains a major public health concern in the United States. Information on pregnancy rates among contraceptive users is needed to guide medical professionals' recommendat...
Context: Induced abortions are often severely underreported in national surveys, hampering the estimation and analysis of unintended pregnancies. To improve the level of abortion reporting, the 1995 N...
The 1995 National Survey of Family Growth (NSFG) was conducted by the National Center for Health Statistics (NCHS) under a contract with the Research Triangle Institute (RTI) of Research Triangle Park...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...