Evidence map›Paper›PMID 23838554›Full record

ArticleBMJ (Clinical research ed.)2013

Mediators of the association between pre-eclampsia and cerebral palsy: population based cohort study.

Kristin Melheim Strand, Runa Heimstad, Ann-Charlotte Iversen, Rigmor Austgulen, Stian Lydersen, Guro L Andersen, Lorentz M Irgens, Torstein Vik

Open access · hybridAbstract readComparative Study
In one paragraph

Article in BMJ (Clinical research ed.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
8.8field-weighted citation impact, top 3% of its field
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

31 citing papers in PubMed, 84 citations in OpenAlex.

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  14. Preeclampsia and Cerebral Palsy in Offspring.Children (Basel, Switzerland) · 2022
    Review
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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

8 authors at 5 institutions in 1 country.

Kristin Melheim StrandDepartment of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, PO Box 8905, MTFS, N-7491 Trondheim, Norway. krist@stud.ntnu.no
Runa Heimstad
Ann-Charlotte Iversen
Rigmor Austgulen
Stian Lydersen
Guro L Andersen
Lorentz M Irgens
Torstein Vik
Norwegian University of Science and Technology · NOCancer Registry of Norway · NONTNU Samfunnsforskning · NOSt Olav's University Hospital · NOSykehuset i Vestfold · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo test the hypothesis that pre-eclampsia is a risk factor for cerebral palsy mediated through preterm birth and being born small for gestational age.

designPopulation based cohort study.

settingClinical data from the Norwegian Cerebral Palsy Registry were linked with perinatal data prospectively recorded by the Medical Birth Registry of Norway.

participantsAll singleton babies who survived the neonatal period during 1996-2006 (849 children with cerebral palsy and 616,658 control children).

main outcome measuresCerebral palsy and cerebral palsy subtypes.

resultsChildren exposed to pre-eclampsia had an excess risk of cerebral palsy (unadjusted odds ratio 2.5, 95% confidence interval 2.0 to 3.2) compared with unexposed children. Among children born at term (≥ 37 weeks), exposure to pre-eclampsia was not associated with an excess risk of cerebral palsy in babies not born small for gestational age (1.2, 0.7 to 2.0), whereas children exposed to pre-eclampsia and born small for gestational age had a significantly increased risk of cerebral palsy (3.2, 1.5 to 6.7). Non-small for gestational age babies born very preterm (<32 weeks) and exposed to pre-eclampsia had a reduced risk of cerebral palsy compared with unexposed children born at the same gestational age (0.5, 0.3 to 0.8), although the risk was not statistically significantly reduced among children exposed to pre-eclampsia and born small for gestational age (0.7, 0.4 to 1.3). Exposure to pre-eclampsia was not associated with a specific cerebral palsy subtype.

conclusionsExposure to pre-eclampsia was associated with an increased risk of cerebral palsy, and this association was mediated through the children being born preterm or small for gestational age, or both. Among children born at term, pre-eclampsia was a risk factor for cerebral palsy only when the children were small for gestational age.

Indexed as

Infant, PrematureInfant, Small for Gestational AgeAge FactorsCase-Control StudiesCerebral PalsyChild, PreschoolComorbidityFemaleGestational AgeHumansIncidenceInfantInfant, NewbornMaleNorwayPredictive Value of Tests

Identifiers

PMID23838554
PMCPMC3706637
OpenAlexW2046992587

What OpenQuestion holds

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Registered trials

None linked

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.