Hamilton Brady E, Kirmeyer Sharon E
Natl Vital Stat Rep. 2017 Feb;66(2):1-14.
Objective-This report presents trends in reproduction and intrinsic rates from 1990 through 2014. In addition, total fertility and gross reproduction rates by race and Hispanic-origin group are presented from 1990 through 2014, and net reproduction and intrinsic rates for selected race and Hispanic-origin group are presented from 2006 through 2014. Methods-Tabular and graphic data on the trends in the reproduction and intrinsic rates for the United States, by race and Hispanic origin of mother, are presented and described. Results-Rates of reproduction (total fertility, gross reproduction, and net reproduction), the intrinsic rate of natural increase, and the intrinsic birth rate were lower in 2014 than 1990. After a steady decline from 1990 through 1997, all rates increased from 1997 through 2007 but declined again from 2007 through 2013. The rates increased between 2013 and 2014. Among the race and Hispanic subgroups examined, the total fertility and gross reproduction rates were lower for all groups in 2014 compared with 1990. The net reproduction rate, intrinsic rate of natural increase, and intrinsic birth rate for the selected groups non-Hispanic white, non-Hispanic black, and Hispanic declined from 2006 through 2014.
目的——本报告呈现了1990年至2014年繁殖率和内在增长率的趋势。此外,还给出了1990年至2014年按种族和西班牙裔血统分组的总和生育率及粗再生育率,以及2006年至2014年选定种族和西班牙裔血统分组的净再生育率和内在增长率。方法——展示并描述了按母亲的种族和西班牙裔血统划分的美国繁殖率和内在增长率趋势的表格及图形数据。结果——2014年的繁殖率(总和生育率、粗再生育率和净再生育率)、自然增长内在率和出生内在率均低于1990年。从1990年至1997年稳步下降后,所有比率在1997年至2007年上升,但在2007年至2013年再次下降。这些比率在2013年至2014年有所上升。在所研究的种族和西班牙裔亚组中,2014年所有组的总和生育率和粗再生育率均低于1990年。选定组(非西班牙裔白人、非西班牙裔黑人及西班牙裔)的净再生育率、自然增长内在率和出生内在率在2006年至2014年有所下降。