Evidence map›Paper›PMID 33030757›Full record

Observational studyUltrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology2021

Prediction of pre-eclampsia-related complications in women with suspected or confirmed pre-eclampsia: development and internal validation of clinical prediction model.

L Saleh, M M Alblas, D Nieboer, R I Neuman, Y Vergouwe, I A Brussé, J J Duvekot, E W Steyerberg, H J Versendaal, A H J Danser and 3 more

Abstract readMulticenter StudyObservational StudyValidation Study
In one paragraph

Observational study in Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

13 authors.

L SalehDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC, Rotterdam, The Netherlands.ORCID https://orcid.org/0000-0001-6219-3109
M M AlblasCentre for Medical Decision Sciences, Department of Public Health, Erasmus MC, Rotterdam, The Netherlands.
D NieboerCentre for Medical Decision Sciences, Department of Public Health, Erasmus MC, Rotterdam, The Netherlands.
R I NeumanDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC, Rotterdam, The Netherlands.ORCID https://orcid.org/0000-0002-2471-9461
Y VergouweCentre for Medical Decision Sciences, Department of Public Health, Erasmus MC, Rotterdam, The Netherlands.
I A BrusséDepartment of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Erasmus MC, Rotterdam, The Netherlands.
J J DuvekotDepartment of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Erasmus MC, Rotterdam, The Netherlands.
E W SteyerbergCentre for Medical Decision Sciences, Department of Public Health, Erasmus MC, Rotterdam, The Netherlands.
H J VersendaalDepartment of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Maasstad Ziekenhuis, Rotterdam, The Netherlands.
A H J DanserDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC, Rotterdam, The Netherlands.
A H VAN DEN MeirackerDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC, Rotterdam, The Netherlands.
K VerdonkDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC, Rotterdam, The Netherlands.
W VisserDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC, Rotterdam, The Netherlands.

Funding

Roche DiagnosticsStichting Coolsingel
6 · The paper itself

Abstract

objectiveA model that can predict reliably the risk of pre-eclampsia (PE)-related pregnancy complications does not exist. The aim of this study was to develop and validate internally a clinical prediction model to predict the risk of a composite outcome of PE-related maternal and fetal complications within 7, 14 and 30 days of testing in women with suspected or confirmed PE.

methodsThe data for this study were derived from a prospective, multicenter, observational cohort study on women with a singleton pregnancy and suspected or confirmed PE at 20 to < 37 weeks' gestation. For the development of the prediction model, the possible contribution of clinical and standard laboratory variables, as well as the biomarkers soluble fms-like tyrosine kinase-1 (sFlt-1), placental growth factor (PlGF) and their ratio, in the prediction of a composite outcome of PE-related complications, consisting of maternal and fetal adverse events within 7, 14 and 30 days, was explored using multivariable competing-risks regression analysis. The discriminative ability of the model was assessed using the concordance (c-) statistic. A bootstrap validation procedure with 500 replications was used to correct the estimate of the prediction model performance for optimism and to compute a shrinkage factor for the regression coefficients to correct for overfitting.

resultsAmong 384 women with suspected or confirmed PE, 96 (25%) had an adverse PE-related outcome at any time after hospital admission. Important predictors of adverse PE-related outcome included sFlt-1/PlGF ratio, gestational age at the time of biomarker measurement and protein-to-creatinine ratio as continuous variables. The c-statistics (corrected for optimism) for developing a PE-related complication within 7, 14 and 30 days were 0.89, 0.88 and 0.87, respectively. There was limited overfitting, as indicated by a shrinkage factor of 0.91.

conclusionsWe propose a simple clinical prediction model with good discriminative performance to predict PE-related complications. Determination of its usefulness in clinical practice awaits further investigation and external validation. © 2020 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

Indexed as

Models, StatisticalAdultBiomarkersFemaleGestational AgeHumansPlacenta Growth FactorPredictive Value of TestsPre-EclampsiaPregnancyPregnancy ComplicationsPregnancy TrimestersPrenatal DiagnosisProspective StudiesRegression AnalysisReproducibility of ResultsBiomarkersFLT1 protein, humanPGF protein, humanPlacenta Growth FactorVascular Endothelial Growth Factor Receptor-1PlGFprediction modelpre-eclampsiasFlt-1

Identifiers

PMID33030757
PMCPMC8596877

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Registered trials

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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.