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ArticleBMJ open respiratory research2021

COPD-Lower Respiratory Tract Infection Visual Analogue Score (c-LRTI-VAS) validation in stable and exacerbated patients with COPD.

Hendrik Johannes Prins, Ruud Duijkers, Johannes M A Daniels, Thys van der Molen, Tjip S van der Werf, Wim Boersma

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMJ open respiratory research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01232140 (CRP-guided Antibiotic Treatment in Patients Hospitalized With Acute Exacerbations of COPD Patients. A Randomized Controlled Intervention Trial.), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.1field-weighted citation impact, top 53% 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.

NCT01232140 naunknown statusnot on this map

CRP-guided Antibiotic Treatment in Patients Hospitalized With Acute Exacerbations of COPD Patients. A Randomized Controlled Intervention Trial.

TypeinterventionalSponsorMedical Center AlkmaarRan2011 to 2013Enrolled220ConditionsCOPD, Exacerbation, Bronchitis, SputumArmsCRP-guided antibiotic treatment
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 3 citations in OpenAlex.

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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

6 authors at 4 institutions in 1 country.

Hendrik Johannes PrinsDepartment Pulmonary Diseases, Noordwest Ziekenhuisgroep, Alkmaar, Noord-Holland, The Netherlands.
Ruud DuijkersDepartment Pulmonary Diseases, Noordwest Ziekenhuisgroep, Alkmaar, Noord-Holland, The Netherlands.
Johannes M A DanielsPulmonary Diseases, Vrije Universiteit Amsterdam, Amsterdam, Noord-Holland, The Netherlands.
Thys van der MolenDepartment of Pulmonary Diseases & Tuberculosis, University Medical Centre Groningen, Groningen, Groningen, The Netherlands.
Tjip S van der WerfInfectious diseases Service and Tuberculosis unit, University of Groningen Faculty of Medical Sciences, Groningen, Groningen, The Netherlands t.s.van.der.werf@umcg.nl.
Wim Boersmapulmonary disease, Noordwest Ziekenhuisgroep, Alkmaar, Noord-Holland, The Netherlands.
Noordwest Ziekenhuisgroep · NLUniversity Medical Center Groningen · NLUniversity of Groningen · NLVrije Universiteit Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe developed the chronic obstructive pulmonary disease (COPD)-Lower Respiratory Tract Infection-Visual Analogue Score (c-LRTI-VAS) in order to easily quantify symptoms during exacerbations in patients with COPD. This study aimed to validate this score.

methodsIn our study, patients with stable COPD as well as those with an acute exacerbations of COPD (AECOPD) were included. The results of c-LRTI-VAS were compared with other markers of disease activity (lung function parameters, oxygen saturation and two health related quality of life questionnaires (St Georges Respiratory Questionnaire (SGRQ) and Clinical COPD Questionnaire (CCQ)) and validity, reliability and responsiveness were assessed.

resultsEighty-eight patients with clinically stable COPD and 102 patients who had an AECOPD completed the c-LRTI-VAS questionnaire. When testing on two separate occasions for repeatability, no statistically significant difference between total scores was found 0.143 (SD 5.42) (p=0.826). Internal consistency was high across items (Cronbach's apha 0.755). Correlation with SGRQ and CCQ total scores was moderate to high. After treatment for hospitalised AECOPD, the mean c-LRTI-VAS total score improved 8.14 points (SD 9.13; p≤0.001).

conclusionsc-LRTI-VAS showed proper validity, responsiveness to change and moderate to high correlation with other questionnaires. It, therefore, appears a reliable tool for symptom measurement during AECOPD. TRIAL REGISTRATION NUMBER: NCT01232140.

Indexed as

Pulmonary Disease, Chronic ObstructiveRespiratory Tract InfectionsHumansQuality of LifeReproducibility of ResultsSurveys and QuestionnairesCOPD exacerbations

Identifiers

PMID33593795
PMCPMC7888334
OpenAlexW3129397752

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.