Evidence map›Paper›PMID 30948571›Full record

ArticleBMJ open2019

Does service heterogeneity have an impact on acute hospital length of stay in stroke? A UK-based multicentre prospective cohort study.

Michelle Tørnes, David McLernon, Max Bachmann, Stanley Musgrave, Elizabeth A Warburton, John F Potter, Phyo Kyaw Myint, Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group

Abstract readMulticenter Study
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–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

7 citing papers in PubMed.

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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.

Michelle TørnesAgeing Clinical and Experimental Research Group, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen, UK.
David McLernonMedical Statistics Team, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen, UK.
Max BachmannNorwich Medical School, Univeristy of East Anglia, Norwich, UK.
Stanley MusgraveNorwich Medical School, Univeristy of East Anglia, Norwich, UK.
Elizabeth A WarburtonAddenbrooke's Hospital, University of Cambridge, Cambridge, UK.
John F PotterNorwich Medical School, Univeristy of East Anglia, Norwich, UK.
Phyo Kyaw MyintAgeing Clinical and Experimental Research Group, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen, UK.ORCID 0000-0003-3852-6158
Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group

Funding

Department of Health PB-PG-1208-18240
6 · The paper itself

Abstract

objectivesTo determine whether stroke patients' acute hospital length of stay (AHLOS) varies between hospitals, over and above case mix differences and to investigate the hospital-level explanatory factors.

designA multicentre prospective cohort study.

settingEight National Health Service acute hospital trusts within the Anglia Stroke & Heart Clinical Network in the East of England, UK.

participantsThe study sample was systematically selected to include all consecutive patients admitted within a month to any of the eight hospitals, diagnosed with stroke by an accredited stroke physician every third month between October 2009 and September 2011. PRIMARY AND SECONDARY OUTCOME MEASURES: AHLOS was defined as the number of days between date of hospital admission and discharge or death, whichever came first. We used a multiple linear regression model to investigate the association between hospital (as a fixed-effect) and AHLOS, adjusting for several important patient covariates, such as age, sex, stroke type, modified Rankin Scale score (mRS), comorbidities and inpatient complications. Exploratory data analysis was used to examine the hospital-level characteristics which may contribute to variance between hospitals. These included hospital type, stroke monthly case volume, service provisions (ie, onsite rehabilitation) and staffing levels.

resultsA total of 2233 stroke admissions (52% female, median age (IQR) 79 (70 to 86) years, 83% ischaemic stroke) were included. The overall median AHLOS (IQR) was 9 (4 to 21) days. After adjusting for patient covariates, AHLOS still differed significantly between hospitals (p<0.001). Furthermore, hospitals with the longest adjusted AHLOS's had predominantly smaller stroke volumes.

conclusionsWe have clearly demonstrated that AHLOS varies between different hospitals, and that the most important patient-level explanatory variables are discharge mRS, dementia and inpatient complications. We highlight the potential importance of stroke volume in influencing these differences but cannot discount the potential effect of unmeasured confounders.

Indexed as

Health ServicesHospitalsLength of StayAgedAged, 80 and overBrain IschemiaDementiaEnglandFemaleHospitalizationHospital MortalityHumansMaleOutcome Assessment, Health CarePatient DischargeProspective Studiesacute hospitalhealth services researchlength of stayoutcomestroke

Identifiers

PMID30948571
PMCPMC6500188

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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.