Changes in Multiple Birth Rates and Parental Demographic Factors in South Korea During the Last Four Decades: 1981–2019

نویسندگان

چکیده

Abstract Over the previous decades, twinning rates worldwide have increased remarkably. This study aimed to describe changes in multiple birth and related demographic characteristics, such as maternal age level of education parents South Korea from 1981 2019. analyzed data obtained Korean Statistical Information Service. From 2019, total rate 5 22.5 pairs per 1000 births. rapid increase was due an dizygotic twin births, which mainly occurred mothers aged between 30 39 years. The average multiples 26.06 years 33.98 suggesting that a delay childbearing contributed rate. percentage who completed college or higher degree (CHD) by 1000% indicating sharp females part explains childbearing. percentages individuals CHD were among than those singletons recent when public funding arrangements for fertility treatments available. result suggested completion may be associated with use assisted reproductive technology (ART) independent financial status couples. Taken together, analysis age, ART number responsible remarkable births last four decades.

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ژورنال

عنوان ژورنال: Twin Research and Human Genetics

سال: 2021

ISSN: ['1839-2628', '1832-4274']

DOI: https://doi.org/10.1017/thg.2021.23