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Journal of Immigrant and Minority Health

, Volume 21, Issue 2, pp 307–314 | Cite as

Adverse Pregnancy Outcomes: A Comparison of Risk Factors and Prevalence in Native and Migrant Mothers of Portuguese Generation XXI Birth Cohort

  • Musa Abubakar KanaEmail author
  • Sofia Correia
  • Henrique Barros
Original Paper

Abstract

Epidemiological studies report conflicting findings regarding association between maternal immigration status and pregnancy outcomes. In this study we compared risk factors and prevalence of adverse pregnancy outcomes in native Portuguese and migrants. Cross-sectional analysis was conducted using information collected at delivery from the participants of Generation XXI birth cohort. Logistic regression models were fitted to assess the association between migrant status and adverse pregnancy outcomes. Prevalence of risk factors for adverse pregnancy outcomes varied between native Portuguese and migrants: teenage mothers (5.6 and 2.0%), primiparae (57.1 and 63.9%), smoking during pregnancy (23.0 and 19.1%), twins (3.2 and 8.0%), and caesarean section (35.2 and 45.7%). Among singleton births, prevalence of low birthweight, preterm birth and small for gestational age were 7.3 and 3.9%, 7.5 and 6.2%, and 15.1 and 7.6%, respectively for native Portuguese and migrants. The native Portuguese had an adjusted significantly higher risk of low birthweight (OR 2.67, 95% CI 1.30, 5.48) and small for gestational age (OR 2.01, 95% CI 1.26, 3.21), but a similar risk for preterm birth (OR 1.38, 95% CI 0.81, 2, 34). Migrant mothers presented a lower risk of low birthweight and small for gestation and data suggest a healthy immigrant effect.

Keywords

Migrants Portuguese Risk factors Adverse pregnancy outcomes 

Notes

Acknowledgements

The authors also wish to express their gratitude to the Portuguese Foundation for Science and Technology for supporting their institution, the Epidemiology Research Unit of Institute of Public Health University of Porto (UID/DTP/04750/2013), and specific Grant awards (SFRH/BPD/75918/2011, PTDC/DTPSAP/ 6384/2014 and SFRH/BSAB/113778/2015).

Author Contributions

HB was responsible for the design and assembling of Generation XXI birth cohort. MK and HB conceived and designed the study and analysis. MK, SC and HB prepared the datasets and analysed the data. MK drafted the manuscript. HB reviewed, edited and revised the manuscript as well as supervised all the processes. All authors interpreted data and revised the manuscript critically for intellectual content. Finally, all the authors read and approved the final version.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no competing interests.

Supplementary material

10903_2018_761_MOESM1_ESM.doc (84 kb)
Supplementary material 1 (DOC 84 KB)
10903_2018_761_MOESM2_ESM.doc (44 kb)
Supplementary material 2 (DOC 44 KB)
10903_2018_761_MOESM3_ESM.doc (60 kb)
Supplementary material 3 (DOC 59 KB)

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Copyright information

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

Authors and Affiliations

  • Musa Abubakar Kana
    • 1
    • 2
    Email author
  • Sofia Correia
    • 1
  • Henrique Barros
    • 1
    • 3
  1. 1.EPIUnit-Instituto de Saúde Pública da Universidade do Porto (ISPUP)PortoPortugal
  2. 2.Department of Community Medicine, College of MedicineKaduna State UniversityKadunaNigeria
  3. 3.Faculdade de Medicina, Departamento de Ciências da Saúde Pública e Forenses e Educação MédicaUniversidade do PortoPortoPortugal

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