Abstract：
The purpose of this study was to calculate 10th, 50th, and 90th percentiles of birth weight for gestational age for the total US population and the Asian-American ethnicities. Using the US Natality data files for the years 1992-2020, estimated growth curves were determined across gestational ages and for each Asian American ethnic group-Chinese, Asian Indians, Japanese, Koreans, Filipino, and Vietnamese. Average weight at the 10th, 50th and 90th foetal growth percentiles by race/ethnicity and sex were calculated. Overall, for the 10th, 50th and 90th percentiles, Asian American average birth weight was 18, 90 and 144 g lower than the national average, respectively. We also found that Asian Indians consistently had the lowest birthweight, while Koreans had the highest birthweight among Asian Americans. Updated racial/ethnic-specific weight percentiles by gestational age can be a useful reference for accurate small and large-for-gestational age classifications among different Asian American sub-populations.Impact statementWhat is already known on this subject? Foetal growth is an important determinant of infants\' immediate and long-term health outcomes and foetal growth reference curves have been developed to provide average birth weights for each week of gestation and identify growth-restricted as well as excess-weighing foetuses.What the results of this study add? Using the U.S. Natality data files for the years 1992-2020, estimated growth curves were determined across gestational ages and for each Asian American ethnic group-Chinese, Asian Indians, Japanese, Koreans, Filipino, and Vietnamese. Average weight at the 10th, 50th and 90th foetal growth percentiles by race/ethnicity and sex were calculated.What the implications are of these findings for clinical practice and/or further research? Updated racial/ethnic-specific weight percentiles by gestational age can be a useful reference for accurate small and large-for-gestational age classifications among different Asian American sub-groups.
摘要：
这项研究的目的是计算第十，50岁，美国总人口和亚裔美国人的出生体重为胎龄的第90百分位数。使用1992-2020年的美国自然数据文件，确定了胎龄和每个亚裔美国人-华人的估计生长曲线，亚洲印第安人,日本人,韩国人,菲律宾人,和越南人。10号的平均体重，按种族/民族和性别计算第50和第90个胎儿生长百分位数。总的来说,10号,第50和第90百分位数，亚裔美国人平均出生体重比全国平均水平低18、90和144克，分别。我们还发现亚洲印度人的出生体重一直最低，而韩国人在亚裔美国人中出生体重最高。按胎龄更新的种族/族裔特定体重百分位数可以成为不同亚裔美国人亚人群中准确的小胎龄和大胎龄分类的有用参考。胎儿生长是婴儿近期和长期健康结果的一个重要决定因素,已经建立了胎儿生长参考曲线,以提供妊娠每周的平均出生体重,并确定生长受限和体重过重的胎儿。这项研究的结果补充了什么？使用1992-2020年的美国自然数据文件，确定了不同胎龄和每个亚裔美国人-中国人的估计生长曲线，亚洲印第安人,日本人,韩国人,菲律宾人,和越南人。10号的平均体重，按种族/民族和性别计算第50和第90个胎儿生长百分位数。这些发现对临床实践和/或进一步研究有什么意义？按胎龄更新的种族/族裔特定体重百分位数可以为不同亚裔美国人亚组之间准确的小胎龄和大胎龄分类提供有用的参考。
