Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Stanford University, Stanford, CA, USA.
March of Dimes Prematurity Research Center at Stanford University School of Medicine, Stanford, CA, USA.
J Perinatol. 2020 May;40(5):758-766. doi: 10.1038/s41372-020-0633-1. Epub 2020 Feb 24.
To investigate overall, spontaneous, and medically indicated preterm birth (PTB) rates between US-born and non-US-born Asian women living in California.
Nulliparous women with a singleton livebirth and Asian race in California between 2007 and 2011 were investigated. The prevalence of overall (<37 weeks), spontaneous, and medically indicated PTB was examined by self-reported race and place of birth among ten Asian subgroups.
There were marked differences in PTB rates between the individual Asian subgroups. After adjustments, non-US-born Chinese, Japanese, Vietnamese, and Indian women had lower odds of overall PTB and Chinese, Vietnamese, Cambodian, and Indian women had lower odds of spontaneous PTB compared with their US-born counterparts.
Further investigation of biological and social factors contributing to these lower odds of spontaneous PTB among the non-US-born Asian population could potentially offer clues for reducing the burden of PTB among the US born.
调查美国加州出生和非美国加州出生的亚裔女性的总自发性和医学指征性早产（PTB）率。
对 2007 年至 2011 年期间加州的初产妇、单胎活产和亚裔种族的女性进行了研究。通过自我报告的种族和出生地，在 10 个亚裔亚组中检查了总早产率（<37 周）、自发性早产率和医学指征性早产率。
各亚裔亚组之间的 PTB 率存在明显差异。调整后，与美国出生的女性相比，非美国出生的中国、日本、越南和印度女性总早产率的几率较低，中国、越南、柬埔寨和印度女性自发性早产率的几率较低。
进一步研究生物和社会因素，可能为降低美国出生的早产负担提供线索。
