Evidence map›Paper›PMID 33129362›Full record

Observational studyBMC health services research2020

Improving quality of stroke care through benchmarking center performance: why focusing on outcomes is not enough.

Marzyeh Amini, Nikki van Leeuwen, Frank Eijkenaar, Maxim J H L Mulder, Wouter Schonewille, Geert Lycklama À Nijeholt, Wouter H Hinsenveld, Robert-Jan B Goldhoorn, Pieter Jan van Doormaal, Sjoerd Jenniskens and 5 more

Abstract readObservational Study
In one paragraph

Observational study in BMC health services research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 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

15 authors.

Marzyeh AminiDepartment of Public Health, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands. m.amini@erasmusmc.nl.ORCID http://orcid.org/0000-0002-0123-9510
Nikki van LeeuwenDepartment of Public Health, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.
Frank EijkenaarErasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, The Netherlands.
Maxim J H L MulderDepartment of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Wouter SchonewilleDepartment of Neurology, St. Antonius Hospital, Nieuwegein, The Netherlands.
Geert Lycklama À NijeholtDepartment of Radiology, Medical Center Haaglanden, The Hague, The Netherlands.
Wouter H HinsenveldMaastricht University Medical Center and Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands.
Robert-Jan B GoldhoornMaastricht University Medical Center and Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands.
Pieter Jan van DoormaalDepartment of Radiology and Nuclear Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Sjoerd JenniskensDepartment of Radiology, Radboud University Medical Center, Nijmegen, The Netherlands.
Jan HazelzetDepartment of Public Health, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.
Diederik W J DippelDepartment of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Bob RoozenbeekDepartment of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Hester F LingsmaDepartment of Public Health, Erasmus MC University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.
MR CLEAN Registry Investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBetween-center variation in outcome may offer opportunities to identify variation in quality of care. By intervening on these quality differences, patient outcomes may be improved. However, whether observed differences in outcome reflect the true quality improvement potential is not known for many diseases. Therefore, we aimed to analyze the effect of differences in performance on structure and processes of care, and case-mix on between-center differences in outcome after endovascular treatment (EVT) for ischemic stroke.

methodsIn this observational cohort study, ischemic stroke patients who received EVT between 2014 and 2017 in all 17 Dutch EVT-centers were included. Primary outcome was the modified Rankin Scale, ranging from 0 (no symptoms) to 6 (death), at 90 days. We used random effect proportional odds regression modelling, to analyze the effect of differences in structure indicators (center volume and year of admission), process indicators (time to treatment and use of general anesthesia) and case-mix, by tracking changes in tau

resultsThree thousand two hundred seventy-nine patients were included. Performance on structure and process indicators varied significantly between EVT-centers (P < 0.001). Predicted probability of good functional outcome (modified Rankin Scale 0-2 at 90 days), which can be interpreted as an overall measure of a center's case-mix, varied significantly between 17 and 50% across centers. The amount of between-center variation (tau

conclusionsBetween-center variation in outcome of ischemic stroke patients mostly reflects differences in case-mix, rather than differences in structure or process of care. Since the latter two capture the real quality improvement potential, these should be used as indicators for comparing center performance. Especially when a strong association exists between those indicators and outcome, as is the case for time to treatment in ischemic stroke.

Indexed as

BenchmarkingQuality ImprovementAgedAged, 80 and overCohort StudiesFemaleHumansMaleMiddle AgedStrokeTreatment OutcomeBenchmarkingCase-mixEndovascular treatmentOutcome differencesProcess of careQuality of careStroke

Identifiers

PMID33129362
PMCPMC7603730

What OpenQuestion holds

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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.