美国 1998-2023 年三胞胎及以上多胎出生率的下降

Declines in Triplet and Higher-order Multiple Births in the United States, 1998-2023.

出版信息

NCHS Data Brief. 2024 Oct(512). doi: 10.15620/cdc/164017.

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11615960/

Abstract

OBJECTIVES

This report explores changes in the overall rate of triplet and higher-order births from 1998 to 2023 by detailed plurality, maternal race and Hispanic origin, and age.

METHODS

Data are from the National Vital Statistics System birth files. Triplet and higher-order birth rates (number of triplet and higher-order births per 100,000 births) from 1998 to 2023 are presented. Also presented are the number of triplet, triplet and higher-order, and quadruplet and higher-order births, and triplet and higher-order multiple birth rates by maternal race and Hispanic origin and maternal age for 1998, 2009, and 2023.

RESULTS

From 1998 to 2023, the triplet and higher-order multiple birth rate declined 62%, from 193.5 per 100,000 total births to 73.8; the largest declines were from 2009 to 2023. The number of triplet and higher-order births declined from 7,625 to 2,653. Declines in triplet and higher-order birth rates were observed for White non-Hispanic (71%) and Hispanic (25%) mothers, while the rate for Black non-Hispanic mothers increased (25%). Triplet and higher-order birth rates declined for all age groups 20 and older from 1998 to 2023, and the largest declines were for mothers age 30 and older.

摘要

目的

本报告通过详细的多胎次、产妇种族和西班牙裔血统以及年龄，探讨了 1998 年至 2023 年三胞胎及以上出生总数的变化。

方法

数据来自国家生命统计系统的出生档案。报告了 1998 年至 2023 年三胞胎及以上的出生率（每 10 万例出生中的三胞胎及以上出生数）。还报告了 1998 年、2009 年和 2023 年按产妇种族和西班牙裔血统以及产妇年龄划分的三胞胎、三胞胎及以上和四胞胎及以上出生数以及三胞胎及以上多胎出生率。

结果

1998 年至 2023 年，三胞胎及以上多胎出生率下降了 62%，从每 10 万例活产 193.5 例降至 73.8 例；最大降幅出现在 2009 年至 2023 年期间。三胞胎及以上出生数从 7625 例降至 2653 例。白人非西班牙裔（71%）和西班牙裔（25%）产妇的三胞胎及以上出生率下降，而黑人非西班牙裔产妇的出生率则有所上升（25%）。1998 年至 2023 年，所有 20 岁及以上年龄组的三胞胎及以上出生率均下降，其中 30 岁及以上产妇的降幅最大。