Evidence map›Paper›PMID 33849847›Full record

ArticleBMJ open2021

Symptom burden in multimorbidity: a population-based combined questionnaire and registry study from Denmark.

Tora Grauers Willadsen, Volkert Siersma, Dagny Ros Nicolaisdottir, Dorte Jarbol, Ann Dorrit Guassora, Susanne Reventlow, Rasmus Køster-Rasmussen

Abstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
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  10. Symptom representations in people with multimorbidity undergoing treatment for cancer: a qualitative descriptive study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
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  11. Article
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  17. Review
  18. Multimorbidity in the Elderly: A Systematic Bibliometric Analysis of Research Output.International journal of environmental research and public health · 2021
    Review
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  20. Article
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

7 authors.

Tora Grauers WilladsenDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark tora.willadsen@sund.ku.dk.ORCID 0000-0001-7240-1944
Volkert SiersmaDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
Dagny Ros NicolaisdottirThe Research Unit for General Practice, University of Copenhagen, Copenhagen, Denmark.
Dorte JarbolThe Research Unit for General Practice, University of Southern Denmark, Odense, Denmark.ORCID 0000-0002-3241-4190
Ann Dorrit GuassoraDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
Susanne ReventlowDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0002-4990-142X
Rasmus Køster-RasmussenDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePatients with multimorbidity may carry a large symptom burden. Symptoms are often what drive patients to seek healthcare and they also assist doctors with diagnosis. We examined whether symptom burden is additive in people with multimorbidity compared with people with a single morbidity.

designThis is a longitudinal cohort study drawing on questionnaire and Danish national registry data. Multimorbidity was defined as having diagnoses from at least two out of ten morbidity groups. Associations between morbidity groups and symptom burden were estimated with multivariable models.

participantsIn 2012, 47 452 participants from the Danish Symptom Cohort answered a questionnaire about symptoms (36 symptoms in total), including whether symptoms were affecting their daily activities (

main outcome measureThe primary outcome was symptom burden.

resultsParticipants without morbidity reported 4.77 symptoms (out of 36 possible). Participants with one, two or three morbidities reported more symptoms than patients without morbidity (0.95 (CI 0.86 to 1.03), 1.87 (CI 1.73 to 2.01) and 2.89 (CI 2.66 to 3.12), respectively). Furthermore, they reported a higher impairment score (0.36 (0.32 to 0.39), 0.65 (0.60 to 0.70) and 1.06 (0.98 to 1.14)) and a higher worry score (0.34 (0.31 to 0.37), 0.62 (0.57 to 0.66) and 1.02 (0.94 to 1.10)) than participants without morbidity. In 45 possible combinations of multimorbidity (participants with two morbidities), interaction effects were additive in 37, 41 and 36 combinations for the number of symptoms, impairment score and worry score, respectively.

conclusionParticipants without morbidity reported a substantial number of symptoms. Having a single morbidity or multimorbidity resulted in approximately one extra symptom for each extra morbidity. In most combinations of multimorbidity, symptom burden was additive.

Indexed as

MultimorbidityDenmarkHumansLongitudinal StudiesRegistriesSurveys and Questionnairesepidemiologyprimary carepublic health

Identifiers

PMID33849847
PMCPMC8051398

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