Evidence map›Paper›PMID 30367607›Full record

ArticleBMC pregnancy and childbirth2018

Preeclampsia by maternal reasons for immigration: a population-based study.

Roy M Nilsen, Eline S Vik, Svein A Rasmussen, Rhonda Small, Dag Moster, Erica Schytt, Vigdis Aasheim

Abstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Observational
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  8. Risk of Subsequent Preeclampsia by Maternal Country of Birth: A Norwegian Population-Based Study.International journal of environmental research and public health · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Roy M NilsenFaculty of Health and Social Sciences, Western Norway University of Applied Sciences, Inndalsveien 28, 5063, Bergen, Norway. roy.miodini.nilsen@hvl.no.
Eline S VikFaculty of Health and Social Sciences, Western Norway University of Applied Sciences, Inndalsveien 28, 5063, Bergen, Norway.
Svein A RasmussenDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Rhonda SmallJudith Lumley Centre, School of Nursing & Midwifery, La Trobe University, Melbourne, Australia.
Dag MosterDepartment of Paediatrics, Haukeland University Hospital, Bergen, Norway.
Erica SchyttReproductive Health, Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden.
Vigdis AasheimFaculty of Health and Social Sciences, Western Norway University of Applied Sciences, Inndalsveien 28, 5063, Bergen, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo investigate whether the occurrence of preeclampsia varied by maternal reasons for immigration.

methodsWe 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.

resultsPreeclampsia 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]).

conclusionsThe 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.

Indexed as

AdultEmigrants and ImmigrantsFemaleHumansIncidenceNorwayPre-EclampsiaPregnancyRefugeesRegistriesRisk FactorsYoung AdultEducationFamilyImmigrationLabourPreeclampsiaPregnancyRefugee

Identifiers

PMID30367607
PMCPMC6204029

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.