Evidence map›Paper›PMID 27699465›Full record

ArticleJournal of neurology2016

Vascular comorbidities in multiple sclerosis: a nationwide study from Denmark.

Anja Thormann, Melinda Magyari, Nils Koch-Henriksen, Bjarne Laursen, Per Soelberg Sørensen

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 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

23 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Comorbidity and modifiable risk factors in multiple sclerosis.Therapeutic advances in neurological disorders · 2026
    Review
  7. Article
  8. Observational
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The Danish Multiple Sclerosis Registry.Brain and behavior · 2021
    Article
  17. Comorbidity in Multiple Sclerosis.Frontiers in neurology · 2020
    Review
  18. Article
  19. Article
  20. Review
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

5 authors.

Anja ThormannDepartment of Neurology, Danish Multiple Sclerosis Center, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. anja.thormann.01@regionh.dk.ORCID http://orcid.org/0000-0002-8046-5101
Melinda MagyariDepartment of Neurology, Danish Multiple Sclerosis Center, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark.
Nils Koch-HenriksenThe Danish Multiple Sclerosis Registry, Department of Neurology, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
Bjarne LaursenThe Danish National Institute of Public Health, University of Southern Denmark, Øster Farimagsgade 5A, 1353, Copenhagen K, Denmark.
Per Soelberg SørensenDepartment of Neurology, Danish Multiple Sclerosis Center, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the occurrence of vascular comorbidities before and after the clinical onset of multiple sclerosis. In this combined case-control and cohort study, all Danish born citizens with onset of multiple sclerosis 1980-2005 were identified from the Danish Multiple Sclerosis Registry and randomly matched with controls regarding year of birth, gender, and municipality on January 1st in the year of multiple sclerosis (MS) onset (index date). Individual-level information on comorbidities was obtained from several independent nationwide registries and linked to the study population by unique personal identification numbers. To assess the presence of vascular comorbidities before and after MS onset, cases and controls were followed from January 1977 to the index date, and from the index date through December 2012. We used logistic regression to calculate odds ratios (ORs) and Cox regression to calculate hazard ratios (HRs). Before the index date, MS cases had a decreased probability for cerebrovascular comorbidity [OR 0.69 (95 % CI 0.48-0.99, p = 0.043)], and a numerically but not statistically significant decreased probability for cardiovascular comorbidity [OR 0.87 (95 % CI 0.71-1.07, p = 0.188)]. After the index date, MS cases had an increased risk for cerebrovascular comorbidity [HR 1.84 (95 % CI 1.69-2.00, p < 0.0005)], and for cardiovascular comorbidity [HR 1.08 (95 % CI 1.02-1.15, p = 0.013)]. The lower occurrence of cerebrovascular comorbidities in cases prior to MS onset could be due to protective immune mechanisms, while the higher occurrence of vascular comorbidities in cases after MS onset could be because of converging causal pathways of the coexisting diseases. These findings deserve to be studied closer in a broader spectrum of comorbidities in MS.

Indexed as

AdolescentAdultAgedAged, 80 and overAge DistributionAge of OnsetCohort StudiesComorbidityDenmarkFemaleHumansLogistic ModelsMaleMiddle AgedMultiple SclerosisOdds RatioComorbidityEpidemiologyMultiple sclerosisVascular comorbidity

Identifiers

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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.