Evidence map›Paper›PMID 29716425›Full record

Observational studyJournal of intensive care medicine2020

Early Prediction of Intensive Care Unit-Acquired Weakness: A Multicenter External Validation Study.

Esther Witteveen, Luuk Wieske, Juultje Sommers, Jan-Jaap Spijkstra, Monique C de Waard, Henrik Endeman, Saskia Rijkenberg, Wouter de Ruijter, Mengalvio Sleeswijk, Camiel Verhamme and 3 more

Open access · hybridAbstract readMulticenter StudyObservational StudyValidation Study
In one paragraph

Observational study in Journal of intensive care medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 17% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.

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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 at 5 institutions in 1 country.

Esther WitteveenDepartment of Intensive Care Medicine, Academic Medical Center (AMC), Amsterdam, the Netherlands.ORCID https://orcid.org/0000-0001-7378-799X
Luuk WieskeDepartment of Intensive Care Medicine, Academic Medical Center (AMC), Amsterdam, the Netherlands.
Juultje SommersDepartment of Rehabilitation, Academic Medical Center (AMC), Amsterdam, the Netherlands.
Jan-Jaap SpijkstraDepartment of Intensive Care Medicine, VU medical center (VUmc), Amsterdam, the Netherlands.
Monique C de WaardDepartment of Intensive Care Medicine, VU medical center (VUmc), Amsterdam, the Netherlands.
Henrik EndemanDepartment of Intensive Care Medicine, OLVG, Amsterdam, the Netherlands.
Saskia RijkenbergDepartment of Intensive Care Medicine, OLVG, Amsterdam, the Netherlands.
Wouter de RuijterDepartment of Intensive Care Medicine, Noordwest Ziekenhuisgroep, Alkmaar, the Netherlands.
Mengalvio SleeswijkDepartment of Intensive Care Medicine, Flevoziekenhuis, Almere, the Netherlands.
Camiel VerhammeDepartment of Neurology, Academic Medical Center (AMC), Amsterdam, the Netherlands.
Marcus J SchultzDepartment of Intensive Care Medicine, Academic Medical Center (AMC), Amsterdam, the Netherlands.
Ivo N van SchaikDepartment of Neurology, Academic Medical Center (AMC), Amsterdam, the Netherlands.
Janneke HornDepartment of Intensive Care Medicine, Academic Medical Center (AMC), Amsterdam, the Netherlands.
Amsterdam UMC Location University of Amsterdam · NLAmsterdam UMC Location Vrije Universiteit Amsterdam · NLOLVG · NLFlevoziekenhuis · NLNoordwest Ziekenhuisgroep · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAn early diagnosis of intensive care unit-acquired weakness (ICU-AW) is often not possible due to impaired consciousness. To avoid a diagnostic delay, we previously developed a prediction model, based on single-center data from 212 patients (development cohort), to predict ICU-AW at 2 days after ICU admission. The objective of this study was to investigate the external validity of the original prediction model in a new, multicenter cohort and, if necessary, to update the model.

methodsNewly admitted ICU patients who were mechanically ventilated at 48 hours after ICU admission were included. Predictors were prospectively recorded, and the outcome ICU-AW was defined by an average Medical Research Council score <4. In the validation cohort, consisting of 349 patients, we analyzed performance of the original prediction model by assessment of calibration and discrimination. Additionally, we updated the model in this validation cohort. Finally, we evaluated a new prediction model based on all patients of the development and validation cohort.

resultsOf 349 analyzed patients in the validation cohort, 190 (54%) developed ICU-AW. Both model calibration and discrimination of the original model were poor in the validation cohort. The area under the receiver operating characteristics curve (AUC-ROC) was 0.60 (95% confidence interval [CI]: 0.54-0.66). Model updating methods improved calibration but not discrimination. The new prediction model, based on all patients of the development and validation cohort (total of 536 patients) had a fair discrimination, AUC-ROC: 0.70 (95% CI: 0.66-0.75).

conclusionsThe previously developed prediction model for ICU-AW showed poor performance in a new independent multicenter validation cohort. Model updating methods improved calibration but not discrimination. The newly derived prediction model showed fair discrimination. This indicates that early prediction of ICU-AW is still challenging and needs further attention.

Indexed as

Clinical Decision RulesIntensive Care UnitsAgedArea Under CurveCalibrationCritical CareDelayed DiagnosisFemaleHospitalizationHumansMaleMiddle AgedMuscle WeaknessNetherlandsPrognosisProspective Studiesexternal validationICU–acquired weaknessmodel validationpredictionprediction modelpredictors

Identifiers

PMID29716425
PMCPMC7222288
OpenAlexW2801614591

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.