Evidence map›Paper›PMID 33894785›Full record

Observational studyCardiovascular diabetology2021

Early and long-term prognosis in patients with and without type 2 diabetes after carotid intervention: a Swedish nationwide propensity score matched cohort study.

Alexander Zabala, Anders Gottsäter, Marcus Lind, Ann-Marie Svensson, Björn Eliasson, Rebecka Bertilsson, Jan Ekelund, Thomas Nyström, Magnus Jonsson

Abstract readObservational Study
In one paragraph

Observational study in Cardiovascular diabetology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Diabetes, stroke severity and hemodynamic cerebral ischemia.Cardiovascular diabetology. Endocrinology reports · 2025
    Article
  3. Article
  4. Observational
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

9 authors.

Alexander ZabalaDepartment of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 11883, Stockholm, Sweden. alexander.zabala@sll.se.ORCID 0000-0001-5389-1271
Anders GottsäterDepartment of Clinical Sciences, Malmö, Lund University, Lund, Sweden.
Marcus LindDepartment of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
Ann-Marie SvenssonCentre of Registers in Region Västra Götaland, Gothenburg, Sweden.
Björn EliassonInstitute of Medicine, University of Gothenburg, Gothenburg, Sweden.
Rebecka BertilssonCentre of Registers in Region Västra Götaland, Gothenburg, Sweden.
Jan EkelundCentre of Registers in Region Västra Götaland, Gothenburg, Sweden.
Thomas Nyström *Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 11883, Stockholm, Sweden.
Magnus Jonsson *Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate early and long-term outcomes after treatment of carotid artery stenosis in patients with type 2 diabetes (T2D) compared to patients without T2D. DESIGN/

methodThis observational nationwide population-based retrospective cohort study investigated all T2D patients treated for carotid stenosis registered in the National Swedish Vascular Surgery and the National Diabetes Registries. Data was collected prospectively for all patients after carotid intervention, during 2009-2015. We estimated crude early (within 30-days) hazard ratios (HRs) risk of stroke and death, and long-term HRs risk, adjusted for confounders with 95% confidence intervals (CIs), for stroke and death and major adverse cardiovascular events (MACE) by using inverse probability of treatment weighting matching.

resultsA total of 1341 patients with T2D and 4162 patients without T2D were included; 89% treated for symptomatic carotid stenosis, 96% with carotid endarterectomy. There was an increased early risk, HRs (95% CI), for stroke in T2D patients 1.65 (1.17-2.32), whereas risk for early death 1.00 (0.49-2.04) was similar in both groups. During a median follow-up of 4.3 (T2D) and 4.6 (without T2D), with a maximum of 8.0 years; after propensity score matching there was an increased HRs (95% CI) of stroke 1.27 (1.05-1.54) and death 1.27 (1.10-1.47) in T2D patients compared to patients without T2D. Corresponding numbers for MACE were 1.21 (1.08-1.35).

conclusionsPatients with T2D run an increased risk for stroke, death, and MACE after carotid intervention. They also have an increased perioperative risk for stroke, but not for death.

Indexed as

Diabetes Mellitus, Type 2Endarterectomy, CarotidEndovascular ProceduresAgedAged, 80 and overCarotid StenosisFemaleHumansMaleMiddle AgedPropensity ScoreRegistriesRetrospective StudiesRisk AssessmentRisk FactorsStentsCarotid artery stentingCarotid endarterectomyCarotid stenosisStrokeType 2 diabetes

Identifiers

PMID33894785
PMCPMC8070321

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LicenceCC BY
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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.