Anna I Girsen1, Jonathan A Mayo2, Imee A Datoc3, Scarlett Karakash3, Jeffrey B Gould4, David K Stevenson2,4, Yasser Y El-Sayed3, Gary M Shaw2,4. 1. Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Stanford University, Stanford, CA, USA. agirsen@stanford.edu. 2. March of Dimes Prematurity Research Center at Stanford University School of Medicine, Stanford, CA, USA. 3. Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Stanford University, Stanford, CA, USA. 4. Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University, Stanford, CA, USA.
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.
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.
Authors: Julia D DiTosto; Can Liu; Elizabeth Wall-Wieler; Ronald S Gibbs; Anna I Girsen; Yasser Y El-Sayed; Alexander J Butwick; Suzan L Carmichael Journal: Am J Obstet Gynecol MFM Date: 2021-03-09