1970-86年美国高龄妇女头胎的趋势和变化。

Vital and health statistics. Series 21, Data from the National Vital Statistics System Pub Date : 1989-06-01

S J Ventura

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摘要

介绍了1970-86年30多岁及以上首次生育妇女的趋势和变化。该报告关注的是20多岁女性(尤其是受过良好教育的女性)生育人数的下降，以及这些女性推迟生育的程度。还讨论了母婴健康特点。所提供的信息来自所有州和哥伦比亚特区的活出生证明。

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Trends and variations in first births to older women, United States, 1970-86.

Trends and variations in first-time childbearing women in their thirties and older are presented for the years 1970-86. The report focuses on the decline in childbearing by women in their twenties, particularly well-educated women, and the extent to which these women have delayed motherhood. Maternal and infant health characteristics are also discussed. The information presented is drawn from the live birth certificates of all states and the District of Columbia.

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Vital and health statistics. Series 21, Data from the National Vital Statistics System

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