BMC Pregnancy and Childbirth
Volume 18, Issue 1, 2018

Preeclampsia by maternal reasons for immigration: A population-based study 11 Medical and Health Sciences 1114 Paediatrics and Reproductive Medicine (Article) (Open Access)

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

Abstract

Background: To investigate whether the occurrence of preeclampsia varied by maternal reasons for immigration. Methods: We included 1,287,270 singleton pregnancies (163,508 to immigrant women) in Norway during 1990-2013. Individual data were obtained through record linkage between the Medical Birth Registry of Norway and Statistics Norway. Analyses were performed for preeclampsia overall and in combination with preterm birth < 37 and < 34 weeks of gestation, referred to as preterm and very preterm preeclampsia. Odds ratios (ORs) with 95% confidence intervals (CIs) were estimated using logistic regression with robust standard errors, adjusted for relevant covariates, including maternal income and education. Results: Preeclampsia was reported in 3.5% of Norwegian women and 2.5% of immigrants. Compared with Norwegian women, the adjusted OR for preeclampsia was lowest in labour immigrants (adjusted OR 0.55 [95% CI 0.49-0.62]), followed by family immigrants (0.62 [0.59-0.65]), immigrant students (0.75 [0.65-0.86]), refugees (0.81 [0.75-0.88]), and immigrants from other Nordic countries (0.87 [0.80-0.94]). Compared with Norwegian women, labour immigrants also had lower adjusted odds of preterm and very preterm preeclampsia, whereas refugees had increased adjusted odds of preterm and very preterm preeclampsia (< 37 weeks: 1.18 [1.02-1.36], and < 34 weeks: 1.41 [1.15-1.72]). Conclusions: The occurrence of preeclampsia was lower overall in immigrants than in non-immigrants, but associations varied by maternal reasons for immigration. Maternity caregivers should pay increased attention to pregnant women with refugee backgrounds due to their excess odds of preterm preeclampsia. © 2018 The Author(s).

Author Keywords

Education Pregnancy Preeclampsia Labour Immigration Refugee Family

Index Keywords

educational status immigrant refugee Registries Norway register human immigration Refugees statistics and numerical data controlled study premature labor Young Adult student gestation period migrant family Humans income Emigrants and Immigrants female risk factor Risk Factors pregnancy population research Incidence Article major clinical study adult preeclampsia Pre-Eclampsia
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055614219&doi=10.1186%2fs12884-018-2034-4&partnerID=40&md5=a274af9f803c46c5a1035eeb01b39a93
DOI: 10.1186/s12884-018-2034-4
ISSN: 14712393
Cited by: 1
Original Language: English