BMC Pregnancy and Childbirth
Volume 19, Issue 1, 2019

Stillbirth in relation to maternal country of birth and other migration related factors: A population-based study in Norway (Article) (Open Access)

Vik E.S.* , Aasheim V. , Schytt E. , Small R. , Moster D. , Nilsen R.M.
  • a Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Campus Kronstad, Inndalsveien 28, Bergen, 5063, Norway, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
  • b Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Campus Kronstad, Inndalsveien 28, Bergen, 5063, Norway
  • c Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Campus Kronstad, Inndalsveien 28, Bergen, 5063, Norway, Centre for Clinical Research Dalarna, Uppsala University, Uppsala, Sweden, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
  • d Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden, Judith Lumley Centre, La Trobe University, Melbourne, Australia
  • e Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway, Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
  • f Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Campus Kronstad, Inndalsveien 28, Bergen, 5063, Norway

Abstract

Background: Migrant women's overall increased risk of adverse pregnancy outcomes is well known. The aim of this study was to investigate possible associations between stillbirth and maternal country of birth and other migration related factors (paternal origin, reason for immigration, length of residence and birthplace of firstborn child) in migrant women in Norway. Methods: Nationwide population-based study including births to primiparous and multiparous migrant women (n = 198,520) and non-migrant women (n = 1,156,444) in Norway between 1990 and 2013. Data from the Medical Birth Registry of Norway and Statistics Norway. Associations were investigated by multiple logistic regression and reported as odds ratios (ORs) with 95% confidence intervals (CIs). Results: Primiparous women from Sri-Lanka and Pakistan, and multiparous women from Pakistan, Somalia, the Philippines and Former Yugoslavia had higher odds of stillbirth when compared to non-migrant women (adjusted OR ranged from 1.58 to 1.79 in primiparous and 1.50 to 1.71 in multiparous women). Primiparous migrant women whose babies were registered with Norwegian-born fathers had decreased odds of stillbirth compared to migrant women whose babies were registered with foreign-born fathers (aOR = 0.73; CI 0.58-0.93). Primiparous women migrating for work or education had decreased odds of stillbirth compared to Nordic migrants (aOR = 0.58; CI 0.39-0.88). Multiparous migrant women who had given birth to their first child before arriving in Norway had higher odds of stillbirth in later births in Norway compared with multiparous migrant women who had their first child after arrival (aOR = 1.28; CI 1.06-1.55). Stillbirth was not associated with length of residence in Norway. Conclusions: This study identifies sub-groups of migrant women who are at an increased risk of stillbirth, and highlights the need to improve care for them. More attention should be paid to women from certain countries, multiparous women who had their first baby before arrival and primiparous women whose babies have foreign-born fathers. © 2019 The Author(s).

Author Keywords

Maternal country of birth Length of residence migrant Stillbirth Register study Paternal origin Reason for immigration

Index Keywords

education Pakistan Registries multicenter study Norway multivariate logistic regression analysis register human epidemiology immigration birthplace Odds Ratio statistics and numerical data statistics controlled study Logistic Models Yugoslavia ethnology Sri Lanka Humans migrant male female Infant risk factor Risk Factors pregnancy Article pregnancy outcome father adult major clinical study human experiment migration Somalia multipara parity stillbirth Emigration and Immigration statistical model Transients and Migrants attention Philippines Child
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059494946&doi=10.1186%2fs12884-018-2140-3&partnerID=40&md5=52d203d9947d6f900a4e6b07112d1e70
DOI: 10.1186/s12884-018-2140-3
ISSN: 14712393
Original Language: English