Evidence map›Paper›PMID 26944268›Full record

Observational studyNeurology2016

Examining the effects of comorbidities on disease-modifying therapy use in multiple sclerosis.

Tingting Zhang, Helen Tremlett, Stella Leung, Feng Zhu, Elaine Kingwell, John D Fisk, Virender Bhan, Trudy L Campbell, Karen Stadnyk, B Nancy Yu and 2 more

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 3 pooled it
8.1field-weighted citation impact, top 2% 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

55 citing papers in PubMed, 3 syntheses or guidelines pooled it, 107 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Comorbidity and modifiable risk factors in multiple sclerosis.Therapeutic advances in neurological disorders · 2026
    Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. The Barancik lecture: Comorbidity in multiple sclerosis-Looking backward, looking forward.Multiple sclerosis (Houndmills, Basingstoke, England) · 2023
    Article
  19. The economic impact of comorbidity in multiple sclerosis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    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

12 authors at 1 institution in 1 country.

Tingting ZhangFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Helen TremlettFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Stella LeungFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Feng ZhuFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Elaine KingwellFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
John D FiskFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Virender BhanFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Trudy L CampbellFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Karen StadnykFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
B Nancy YuFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada.
Ruth Ann MarrieFrom the Department of Medicine, Division of Neurology and Centre for Brain Health (T.Z., H.T., F.Z., E.K.), University of British Columbia, Vancouver; Department of Community Health Sciences (S.L., B.N.Y., R.A.M.), University of Manitoba, Winnipeg; Departments of Medicine (J.D.F., V.B., T.L.C.) and Psychiatry (J.D.F.) and School of Nursing (T.L.C.), Dalhousie University, Halifax, Nova Scotia; and Queen Elizabeth II Health Sciences Centre (J.D.F., V.B., T.L.C., K.S.), Nova Scotia Health Authority, Halifax, Canada. rmarrie@hsc.mb.ca.
CIHR Team in the Epidemiology and Impact of Comorbidity on Multiple Sclerosis
Dalhousie University · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

objectiveComorbidities are common in multiple sclerosis (MS) and adversely affect health outcomes. However, the effect of comorbidity on treatment decisions in MS remains unknown. We aimed to examine the effects of comorbidity on initiation of injectable disease-modifying therapies (DMTs) and on the choice of the initial DMT in MS.

methodsWe conducted a retrospective observational analysis using population-based health administrative and linked clinical databases in 3 Canadian provinces. MS cases were defined as any individual with ≥3 diagnostic codes for MS. Cohort entry (index date) was the first recorded demyelinating disease-related claim. The outcomes included choice of initial first-line DMTs and time to initiating a DMT. Logistic and Cox regression models were used to examine the association between comorbidity status and study outcomes, adjusting for sex, age, year of index date, and socioeconomic status. Meta-analysis was used to estimate overall effects across the 3 provinces.

resultsWe identified 10,698 persons with incident MS, half of whom had ≥1 comorbidities. As the total number of comorbidities increased, the likelihood of initiating a DMT decreased. Comorbid anxiety and ischemic heart disease were associated with reduced initiation of a DMT. However, patients with depression were 13% more likely to initiate a DMT compared to those without depression at the index date (adjusted hazard ratio 1.13; 95% confidence interval 1.00-1.27).

conclusionsComorbidities are associated with treatment decisions regarding DMTs in MS. A better understanding of the effects of comorbidity on effectiveness and safety of DMTs is needed.

Indexed as

ComorbidityAdolescentAdultBritish ColumbiaFemaleGlatiramer AcetateHumansImmunologic FactorsInterferon-betaMaleManitobaMiddle AgedMultiple SclerosisNova ScotiaRetrospective StudiesYoung AdultGlatiramer AcetateImmunologic FactorsInterferon-beta

Identifiers

PMID26944268
PMCPMC4826339
OpenAlexW2289614658

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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 Socratic graph.