Evidence map›Paper›PMID 34746964›Full record

Trial reportJournal of neurology2022

Inter-method reliability of the modified Rankin Scale in patients with subarachnoid hemorrhage.

E Nobels-Janssen, E N Postma, I L Abma, J M C van Dijk, R Haeren, H Schenck, W A Moojen, M H den Hertog, D Nanda, A R E Potgieser and 6 more

Open access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 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

16 authors at 7 institutions in 1 country.

E Nobels-JanssenDepartment of Neurology, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands. edith.nobels-janssen@radboudumc.nl.ORCID http://orcid.org/0000-0001-9725-2842
E N PostmaAmsterdam UMC, Department of Neurosurgery, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, The Netherlands.
I L AbmaIQ Healthcare, Radboud University Medical Center, Radboud Institute of Health Sciences, Nijmegen, The Netherlands.
J M C van DijkDepartment of Neurosurgery, University Medical Center Groningen, Groningen, The Netherlands.
R HaerenDepartment of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands.
H SchenckDepartment of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands.
W A MoojenDepartment of Neurosurgery, Haaglanden Medical Center, The Hague, The Netherlands.
M H den HertogDepartment of Neurology, Isala Hospital, Zwolle, The Netherlands.
D NandaDepartment of Neurosurgery, Isala Hospital, Zwolle, The Netherlands.
A R E PotgieserDepartment of Neurosurgery, University Medical Center Groningen, Groningen, The Netherlands.
B A CoertAmsterdam UMC, Department of Neurosurgery, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, The Netherlands.
W I M VerhagenDepartment of Neurology, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands.
R H M A BartelsDepartment of Neurosurgery, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands.
P J van der WeesIQ Healthcare, Radboud University Medical Center, Radboud Institute of Health Sciences, Nijmegen, The Netherlands.
D VerbaanAmsterdam UMC, Department of Neurosurgery, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, The Netherlands.
H D BoogaartsDepartment of Neurosurgery, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands.
Radboud University Nijmegen · NLAmsterdam Neuroscience · NLIsala · NLMaastricht University · NLUniversity Medical Center Groningen · NLCanisius-Wilhelmina Ziekenhuis · NLLeiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesThe modified Rankin Scale (mRS) is one of the most frequently used outcome measures in trials in patients with an aneurysmal subarachnoid hemorrhage (aSAH). The assessment method of the mRS is often not clearly described in trials, while the method used might influence the mRS score. The aim of this study is to evaluate the inter-method reliability of different assessment methods of the mRS.

methodsThis is a prospective, randomized, multicenter study with follow-up at 6 weeks and 6 months. Patients aged ≥ 18 years with aSAH were randomized to either a structured interview or a self-assessment of the mRS. Patients were seen by a physician who assigned an mRS score, followed by either the structured interview or the self-assessment. Inter-method reliability was assessed with the quadratic weighted kappa score and percentage of agreement. Assessment of feasibility of the self-assessment was done by a feasibility questionnaire.

resultsThe quadratic weighted kappa was 0.60 between the assessment of the physician and structured interview and 0.56 between assessment of the physician and self-assessment. Percentage agreement was, respectively, 50.8 and 19.6%. The assessment of the mRS through a structured interview and by self-assessment resulted in systematically higher mRS scores than the mRS scored by the physician. Self-assessment of the mRS was proven feasible. DISCUSSION: The mRS scores obtained with different assessment methods differ significantly. The agreement between the scores is low, although the reliability between the assessment methods is good. This should be considered when using the mRS in clinical trials.

trial registrationwww.trialregister.nl ; Unique identifier: NL7859.

Indexed as

Subarachnoid HemorrhageHumansOutcome Assessment, Health CareProspective StudiesReproducibility of ResultsTreatment OutcomeModified Rankin ScaleReliabilitySubarachnoid hemorrhage

Identifiers

PMID34746964
PMCPMC8572691
OpenAlexW3213788981

What OpenQuestion holds

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LicenceCC BY
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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.