Abstract
Objective
To investigate overall, spontaneous, and medically indicated preterm birth (PTB) rates between US-born and non-US-born Asian women living in California.
Study design
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.
Results
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.
Conclusion
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.
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Funding
Funding from the March of Dimes (MOD) supported this research. The MOD had no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the article for publication. This work was presented as a poster at the 39th Annual Pregnancy Meeting of the Society for Maternal-Fetal Medicine in Las Vegas, Nevada, February 2019.
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Girsen, A.I., Mayo, J.A., Datoc, I.A. et al. Preterm birth outcomes among Asian women by maternal place of birth. J Perinatol 40, 758–766 (2020). https://doi.org/10.1038/s41372-020-0633-1
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DOI: https://doi.org/10.1038/s41372-020-0633-1