Evidence map›Paper›PMID 27160582›Full record

ArticleBMC pulmonary medicine2016

Assessing health-related quality of life in COPD: comparing generic and disease-specific instruments with focus on comorbidities.

Margarethe E Wacker, Rudolf A Jörres, Annika Karch, Sarah Wilke, Joachim Heinrich, Stefan Karrasch, Armin Koch, Holger Schulz, Henrik Watz, Reiner Leidl and 3 more

2 registry-linked trialsOpen access · goldAbstract readComparative StudyMulticenter Study
In one paragraph

Article in BMC pulmonary medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 65 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 5 pooled it
8.5field-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.

NCT01245933 completednot on this map

Impact of Systemic Manifestations/Comorbidities on Clinical State, Prognosis and Utilisation of Health Care Resources in Patients With COPD

TypeobservationalSponsorPhilipps University MarburgRan2010 to 2023Enrolled2,741ConditionsChronic Obstructive Pulmonary Disease (COPD)
NCT02827929 nacompletednot on this map

Efficacy of Education Programs in Patients With Chronic Airway Diseases

TypeinterventionalSponsorKonkuk University Medical CenterRan2014 to 2016Enrolled285ConditionsCOPD, AsthmaArmsEducation
3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 5 syntheses or guidelines pooled it, 115 citations in OpenAlex.

  1. Pooled it
  2. Measurement properties of preference-based measures for economic evaluation in COPD: a systematic review.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2020
    Pooled it
  3. Pooled it
  4. Economic Burden of Chronic Obstructive Pulmonary Disease (COPD): A Systematic Literature Review.International journal of chronic obstructive pulmonary disease · 2020
    Pooled it
  5. A Systematic Literature Review of the Humanistic Burden of COPD.International journal of chronic obstructive pulmonary disease
    Pooled it
  6. Trial
  7. Trial
  8. Measurement properties of a patient-reported outcome scale for peptic ulcer: a validation study using classical test theory and generalizability theory.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

5 more citing papers are in PubMed but not listed here.

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

13 authors at 6 institutions in 2 countries.

Margarethe E WackerInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ingolstädter Landstr. 1, 85764, Neuherberg, Germany. margarethe.wacker@helmholtz-muenchen.de.
Rudolf A JörresInstitute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Ludwig-Maximilians-Universität München, Ziemssenstr. 1, 80336, Munich, Germany.
Annika KarchInstitute for Biostatistics, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
Sarah WilkeDepartment of Research & Education, CIRO, Hornerheide 1, 6085, NM, Horn, The Netherlands.
Joachim HeinrichInstitute of Epidemiology I, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.
Stefan KarraschInstitute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Ludwig-Maximilians-Universität München, Ziemssenstr. 1, 80336, Munich, Germany.
Armin KochInstitute for Biostatistics, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
Holger SchulzInstitute of Epidemiology I, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.
Henrik WatzPulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Wöhrendamm 80, 22927, Grosshansdorf, Germany.
Reiner LeidlInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.
Claus VogelmeierDepartment of Respiratory Medicine, University of Marburg, University Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Baldingerstraße, 35043, Marburg, Germany.
Rolf HolleInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München GmbH - German Research Center for Environmental Health, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.
COSYCONET-Consortium
Helmholtz Zentrum München · DEGerman Center for Lung Research · DELudwig-Maximilians-Universität München · DEMedizinische Hochschule Hannover · DECiro · NLLungenClinic Grosshansdorf · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic Obstructive Pulmonary Disease (COPD) influences different aspects of patient's health-related quality of life (HRQL). While disease-specific HRQL instruments focus on symptoms and functional impairments, generic instruments cover a broader view on health. This study compares the generic EQ-5D-3 L and two disease-specific questionnaires (St.-George's Respiratory Questionnaire (SGRQ-C), COPD Assessment Test (CAT)) in a comprehensive spectrum of COPD disease grades with particular attention on comorbidities and assesses the discriminative abilities of these instruments.

methodsUsing data from the baseline visit of the German COPD cohort COSYCONET, mean HRQL scores in different COPD grades were compared by linear regression models adjusting for age, sex, education, smoking status, BMI, and low vs. high number of comorbidities or a list of several self-reported comorbid conditions. Discriminative abilities of HRQL instruments to differentiate between COPD grades were assessed by standardized mean differences.

resultsIn 2,291 subjects in COPD GOLD grades 1-4 EQ-5D-3 L utility, EQ-5D VAS, SGRQ, and CAT were found able to discriminate between COPD grades, with some limitations for the EQ-5D utility in mild disease. Both generic and disease-specific HRQL instruments reflected the burden of comorbid conditions. The SGRQ showed the best discrimination between COPD grades and was less influenced by comorbidities, while EQ-5D utility put a higher weight on comorbid conditions. For all instruments, psychiatric disorders and peripheral artery disease showed the strongest negative associations with HRQL.

conclusionAll HRQL instruments considered reflect considerable impairment of HRQL in COPD patients, worsening with increasing COPD grade and number of comorbidities. Findings may support clinical assessment, choice of HRQL instrument in future studies, and parameterization of decision-analytic models.

Indexed as

Health StatusQuality of LifeActivities of Daily LivingAgedComorbidityCross-Sectional StudiesFemaleGermanyHumansMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRetrospective StudiesSeverity of Illness IndexSurveys and QuestionnairesChronic obstructive pulmonary diseaseCohort studyComorbidityHealth-related quality of lifeQuestionnairesUtility

Identifiers

PMID27160582
PMCPMC4862227
OpenAlexW2345389758

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.