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美国青少年生育的近期趋势。

Recent trends in teen births in the United States.

作者信息

Ventura S J, Curtin S C

出版信息

Stat Bull Metrop Insur Co. 1999 Jan-Mar;80(1):2-12.

Abstract

Teenage births and birth rates have dropped steadily during the 1990s. Overall, the teen birth rate declined 15 percent between 1991 and 1997. The trend in the 1990s reverses a period of steep increases from 1986 to 1991. Despite the recent declines, the teen birth rate in 1997 is still higher than rates in the mid 1980s when they were at an all-time low (50-51 per 1,000). In general, teen birth rates have declined more for younger teenagers (15-17 years) than for older teens (18-19 years). Among all race and ethnic groups, black teenagers have experienced the greatest declines in childbearing during the 1990s. From 1991 to 1997, the rate for black teens 15-19 years dropped 23 percent to the lowest level on record. A particularly noteworthy finding is that the birth rate for second births to all teenagers who have had a first birth (repeat childbearing) declined by 21 percent between 1991 and 1996. Despite the recent decline in teen births and birth rates, a growing number and proportion are to unmarried teens. Most teenagers giving birth in the 1990s are not married--78 percent overall in 1997. Teenage childbearing has important social and health consequences for the teenage mother herself and for her baby. Most teen births are unintended, the educational attainment of teen mothers is limited, teen mothers are less likely to receive timely prenatal care, and teens are more likely to smoke during pregnancy than are older women. As a consequence of these and other factors, babies born to teen mothers are at greater risk of preterm delivery and low birthweight. Teen pregnancy prevention has become a major focus of attention over the past several years, contributing to a wide variety of initiatives and strategies at the national, state and community level.

摘要

20世纪90年代,青少年生育率和出生率持续下降。总体而言,1991年至1997年间,青少年出生率下降了15%。20世纪90年代的这一趋势扭转了1986年至1991年期间急剧上升的局面。尽管近期有所下降,但1997年的青少年出生率仍高于20世纪80年代中期处于历史最低点时的水平(每千例中有50 - 51例)。一般来说,年龄较小的青少年(15 - 17岁)的出生率下降幅度大于年龄较大的青少年(18 - 19岁)。在所有种族和族裔群体中,黑人青少年在20世纪90年代的生育下降幅度最大。1991年至1997年,15 - 19岁黑人青少年的生育率下降了23%,降至有记录以来的最低水平。一个特别值得注意的发现是,所有生育过第一胎的青少年(重复生育)的第二胎出生率在1991年至1996年间下降了21%。尽管近期青少年生育率和出生率有所下降,但未婚青少年生育的数量和比例却在增加。20世纪90年代生育的大多数青少年未婚——1997年总体比例为78%。青少年生育对青少年母亲本人及其婴儿具有重要的社会和健康影响。大多数青少年生育是意外怀孕,青少年母亲的教育程度有限,她们获得及时产前护理的可能性较小,而且青少年在怀孕期间比年龄较大的女性更有可能吸烟。由于这些及其他因素,青少年母亲所生的婴儿早产和低体重的风险更大。在过去几年中,预防青少年怀孕已成为主要关注焦点,推动了国家、州和社区层面的各种举措和战略。

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