Journal of Immigrant and Minority Health

, Volume 21, Issue 5, pp 1095–1101 | Cite as

Impact of Immigration and Duration of Residence in US on Length of Gestation Among Black Women in Newark, New Jersey

  • Amira ElsayedEmail author
  • Ndidiamaka N. Amutah-Onukagha
  • Laurie Navin
  • Lisa Gittens-Williams
  • Teresa Janevic
Original Paper


Little is known about pregnancy outcomes of black immigrant women to the US. We surveyed 447 black women post-partum in two hospitals in Newark, NJ. Length of gestation was obtained from medical records. Covariates and information on immigration were collected by in-person interview. Risks ratios for preterm birth (< 37 weeks) comparing immigrant to US-born women were calculated using log-binomial regression. Associations with gestational age at delivery were estimated using linear regression. Multivariable models adjusted for socioeconomic and social/behavioral variables. Immigrant women relative to US-born women had a 60% lower risk of preterm birth (adjusted risk ratio = 0.4; 95% confidence interval (CI) 0.2, 0.8) and longer gestation (adjusted difference = 1.4 weeks, 95%CI 0.6, 2.1). Gestation was 1.9 weeks longer for recent immigrants compared to US-born women (95%CI 0.2, 3.6), whereas for those who lived in the US for at least 10 years there was no difference. The healthy immigrant effect found among black immigrants may erode with time in the US.


Black immigrants Preterm birth Duration of residence Length of gestation 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of EpidemiologyRutgers School of Public HealthPiscatawayUSA
  2. 2.Department of Public Health and Community MedicineTufts University School of MedicineBostonUSA
  3. 3.March of Dimes FoundationWhite PlainsUSA
  4. 4.Department of Obstetrics, Gynecology, and Women’s HealthNew Jersey Medical SchoolNewarkUSA
  5. 5.Department of Obstetrics, Gynecology, and Reproductive Health Science, Blavatnik Family Women’s Health Research InstituteIcahn School of Medicine at Mount SinaiNew YorkUSA
  6. 6.Department of Population Health Science and Health PolicyIcahn School of Medicine at Mount SinaiNew YorkUSA

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