Evidence map›Paper›PMID 27591046›Full record

ArticleTherapeutic advances in respiratory disease2016

Factors associated with experience of fatigue, and functional limitations due to fatigue in patients with stable COPD.

Magnus Kentson, Kristina Tödt, Elisabeth Skargren, Per Jakobsson, Jan Ernerudh, Mitra Unosson, Kersti Theander

Open access · hybridAbstract read
In one paragraph

Article in Therapeutic advances in respiratory disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
5.1field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.

  1. The prevalence and related factors of fatigue in patients with COPD: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2021
    Pooled it
  2. Pooled it
  3. Trial
  4. Fatigue in COPD: a Longitudinal, Multidimensional Perspective.International journal of behavioral medicine · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Fatigue in cancer patients: comparison with the general population and prognostic factors.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Fatigue in the general population: German normative values of the EORTC QLQ-FA12.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2018
    Article
  20. 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

7 authors at 3 institutions in 1 country.

Magnus KentsonDepartment of Medicine, Division of Pulmonology, Ryhov County Hospital, Jönköping, Sweden, S-551 85 Jönköping, Sweden and Department of Medical and Health Sciences, Linköping University, S-581 83 Linköping, Sweden magnus.kentson@rjl.se.
Kristina TödtDepartment of Respiratory Medicine, Linköping University, Linköping, Sweden and Department of Respiratory Medicine & Allergology, Skane University Hospital, Lund, Sweden.
Elisabeth SkargrenDepartment of Medical and Health Sciences, Linköping University, Linköping, Sweden.
Per JakobssonDepartment of Medicine, Division of Pulmonology, Ryhov County Hospital, Jönköping, Sweden.
Jan ErnerudhDepartment of Clinical Immunology and Transfusion Medicine, Clinical Immunology, Linköping, Sweden.
Mitra UnossonDepartment of Social and Welfare Studies, Linköping University, Norrköping, Sweden.
Kersti TheanderFaculty of Health, Science and Technology, Department of Health Sciences, Nursing, Karlstad University and Primary Care Research Unit, County Council of Värmland, Karlstad, Sweden.
Linköping University · SEKarlstad University · SERyhov Hospital Jönköping · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to determine the influence of selected physiological, psychological and situational factors on experience of fatigue, and functional limitations due to fatigue in patients with stable chronic obstructive pulmonary disease (COPD).

methodsIn total 101 patients with COPD and 34 control patients were assessed for experience of fatigue, functional limitation due to fatigue (Fatigue Impact Scale), physiological [lung function, 6-minute walk distance (6MWD), body mass index (BMI), dyspnoea, interleukin (IL)-6, IL-8, high sensitivity C-reactive protein (hs-CRP), surfactant protein D], psychological (anxiety, depression, insomnia), situational variables (age, sex, smoking, living alone, education), and quality of life.

resultsFatigue was more common in patients with COPD than in control patients (72% versus 56%, p < 0.001). Patients with COPD and fatigue had lower lung function, shorter 6MWD, more dyspnoea, anxiety and depressive symptoms, and worse health status compared with patients without fatigue (all p < 0.01). No differences were found for markers of systemic inflammation. In logistic regression, experience of fatigue was associated with depression [odds ratio (OR) 1.69, 95% confidence interval (CI) 1.28-2.25) and insomnia (OR 1.75, 95% CI 1.19-2.54). In linear regression models, depression, surfactant protein D and dyspnoea explained 35% (R(2)) of the variation in physical impact of fatigue. Current smoking and depression explained 33% (R(2)) of the cognitive impact of fatigue. Depression and surfactant protein D explained 48% (R(2)) of the psychosocial impact of fatigue.

conclusionsExperiences of fatigue and functional limitation due to fatigue seem to be related mainly to psychological but also to physiological influencing factors, with depressive symptoms, insomnia problems and dyspnoea as the most prominent factors. Systemic inflammation was not associated with perception of fatigue but surfactant protein D was connected to some dimensions of the impact of fatigue.

Indexed as

Quality of LifeAgedAnxietyCase-Control StudiesCross-Sectional StudiesDepressionDyspneaExercise TestFatigueFemaleHealth StatusHumansInflammationLogistic ModelsMaleMiddle Agedchronic obstructive pulmonary diseasefatiguesymptomssystemic inflammation

Identifiers

PMID27591046
PMCPMC5933621
OpenAlexW2514837940

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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 OpenQuestion graph.