Evidence map›Paper›PMID 34111347›Full record

ArticleChronic obstructive pulmonary diseases (Miami, Fla.)2021

Chronic Bronchitis in COPD Patients Creates Worse Symptom Burden Regardless of the Presence of Bronchiectasis in the COPDGene Cohort.

Oksana Bohn, Min Xi, Natalie K Woodruff, Gary L Hansen, Charlene E McEvoy, and the COPDGene® Investigators

Open access · diamondAbstract read
In one paragraph

Article in Chronic obstructive pulmonary diseases (Miami, Fla.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.3field-weighted citation impact, top 41% 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

0 citing papers in PubMed, 2 citations in OpenAlex.

No citing paper in PubMed yet.

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

6 authors at 3 institutions in 1 country.

Oksana BohnUniversity of Minnesota, Minneapolis, Minnesota, United States.
Min XiHealthPartners Institute, Bloomington, Minnesota, United States.
Natalie K WoodruffHealthPartners Institute, Bloomington, Minnesota, United States.
Gary L HansenHealthPartners Institute, Bloomington, Minnesota, United States.
Charlene E McEvoyHealthPartners Institute, Bloomington, Minnesota, United States.
and the COPDGene® Investigators
HealthPartners · USIPS Research (United States) · USUniversity of Minnesota System · US

Funding

RespirTech to HealthPartners Institute
6 · The paper itself

Abstract

purposeTo assess whether the presence or absence of bronchiectasis has an impact on the patient-reported symptoms of chronic obstructive pulmonary disease (COPD) patients.

methodsThe study included participants from the COPD Genetic Epidemiology Study (COPDGene®) cohort with available high-resolution chest tomography reporting the presence or absence of bronchiectasis (BE+/BE-) and survey data reporting the presence or absence of chronic bronchitis symptoms (CB+/CB-). Patient symptoms based on the St George's Respiratory Questionnaire (SGRQ) were then compared for the different groups.

resultsThe study population included 7976 participants, mean age 60, Global initiative for chronic Obstructive Lung Disease (GOLD) stages 0 to 4, 18.8% BE+, and 19.5% CB+. The presence or absence of radiographic bronchiectasis was not associated with higher frequency of chronic bronchitis (GOLD 0 group odds ratio [OR] 1.01 [0.78,1.31], GOLD 1-2 group OR 1.19 [0.95, 1.50], GOLD 3-4 group OR 1.26 [0.99, 1.60]). Similarly, CB+ participants had higher SGRQ scores than CB- participants regardless of the presence of BE.

conclusionsAcross all GOLD stages, chronic bronchitis symptoms are associated with worse pulmonary symptoms and significant impairment in quality of life. For patients with chronic bronchitis, the presence or absence of bronchiectasis is not associated with a significant difference in SGRQ symptom scores. Symptoms of chronic bronchitis impose a heavy burden on patients and should be treated regardless of the presence or absence of underlying bronchiectasis.

Indexed as

bronchiectasischronic bronchitisGlobal initiative for chronic Lung DiseaseGOLDSt George’s Respiratory Questionnaire

Identifiers

PMID34111347
PMCPMC8428589
OpenAlexW3171093658

What OpenQuestion holds

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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.