Evidence map›Paper›PMID 24427316›Full record

ArticlePloS one2014

Prevalence and burden of breathlessness in patients with chronic obstructive pulmonary disease managed in primary care.

Hana Müllerová, Chao Lu, Hao Li, Maggie Tabberer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 4 pooled it
6.0field-weighted citation impact, top 3% 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

58 citing papers in PubMed, 4 syntheses or guidelines pooled it, 131 citations in OpenAlex.

  1. Pooled it
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  3. Multicomponent services for symptoms in serious respiratory illness: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2024
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  20. The prevalence of dyspnea in the adult Polish population.International journal of occupational medicine and environmental health · 2022
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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

4 authors at 3 institutions in 2 countries.

Hana MüllerováRespiratory Epidemiology, GlaxoSmithKline R&D, Uxbridge, United Kingdom.
Chao LuObservational Data Analytics, GlaxoSmithKline R&D, Research Triangle Park, North Carolina, United States of America.
Hao LiObservational Data Analytics, GlaxoSmithKline R&D, Research Triangle Park, North Carolina, United States of America.
Maggie TabbererGlobal Health Outcomes, GlaxoSmithKline R&D, Uxbridge, United Kingdom.
GlaxoSmithKline (United Kingdom) · GBGlaxoSmithKline (United States) · USResearch Triangle Park Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimsBreathlessness is a primary clinical feature of chronic obstructive pulmonary disease (COPD). We aimed to describe the frequency of and factors associated with breathlessness in a cohort of COPD patients identified from the Clinical Practice Research Datalink (CPRD), a general practice electronic medical records database.

methodsPatients with a record of COPD diagnosis after January 1 2008 were identified in the CPRD. Breathlessness was assessed using the Medical Research Council (MRC) dyspnoea scale, with scoring ranging from 1-5, which has been routinely administered as a part of the regular assessment of patients with COPD in the general practice since April 2009. Stepwise multivariate logistic regression estimated independent associations with dyspnoea. Negative binomial regression evaluated a relationship between breathlessness and exacerbation rate during follow-up.

resultsThe total cohort comprised 49,438 patients diagnosed with COPD; 40,425 (82%) had any MRC dyspnoea grade recorded. Of those, 22,770 (46%) had moderate-to-severe dyspnoea (MRC ≥ 3). Breathlessness increased with increasing airflow limitation; however, moderate-to-severe dyspnoea was also observed in 32% of patients with mild airflow obstruction. Other factors associated with increased dyspnoea grade included female gender, older age (≥ 70 years), obesity (BMI ≥ 30), history of moderate-to-severe COPD exacerbations, and frequent visits to the general practitioner. Patients with worse breathlessness were at higher risk of COPD exacerbations during follow-up.

conclusionsModerate-to-severe dyspnoea was reported by >40% of patients diagnosed with COPD in primary care. Presence of dyspnoea, including even a perception of mild dyspnoea (MRC = 2), was associated with increased disease severity and a higher risk of COPD exacerbations during follow-up.

Indexed as

Primary Health CareAgedCohort StudiesDatabases, FactualDyspneaFemaleFollow-Up StudiesHumansMaleMiddle AgedPatient Outcome AssessmentPrevalencePublic Health SurveillancePulmonary Disease, Chronic ObstructiveRespiratory Function TestsRisk Factors

Identifiers

PMID24427316
PMCPMC3888425
OpenAlexW2062066840

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.