Evidence map›Paper›PMID 34301741›Full record

Observational studyThorax2022

Longitudinal assessment of lung clearance index to monitor disease progression in children and adults with cystic fibrosis.

Alex R Horsley, John Belcher, Katie Bayfield, Brooke Bianco, Steve Cunningham, Catherine Fullwood, Andrew Jones, Anna Shawcross, Jaclyn A Smith, Anirban Maitra and 1 more

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Thorax, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
4.5field-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

9 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. TBMJ open respiratory research · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Modulator Therapy in Cystic Fibrosis Patients withJournal of personalized medicine · 2022
    Article
  8. A year in review: Real world evidence, functional monitoring and emerging therapeutics in 2021.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2022
    Review
  9. Article
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

11 authors at 8 institutions in 4 countries.

Alex R HorsleyDivision of Infection, Immunity and Respiratory Medicine, The University of Manchester Faculty of Biology, Medicine and Health, Manchester, UK alexander.horsley@manchester.ac.uk.ORCID 0000-0003-1828-0058
John BelcherSchool of Medicine, Keele University, Keele, UK.
Katie BayfieldRespiratory Medicine, Children's Hospital at Westmead, Westmead, New South Wales, Australia.
Brooke BiancoManchester Adult Cystic Fibrosis Centre, Manchester University NHS Foundation Trust, Manchester, UK.
Steve CunninghamMRC Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK.ORCID 0000-0001-7342-251X
Catherine FullwoodStatistics, Research and Innovation, Manchester University NHS Foundation Trust, Manchester, UK.
Andrew JonesManchester Adult Cystic Fibrosis Centre, Manchester University NHS Foundation Trust, Manchester, UK.
Anna ShawcrossRoyal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester, UK.
Jaclyn A SmithDivision of Infection, Immunity and Respiratory Medicine, The University of Manchester Faculty of Biology, Medicine and Health, Manchester, UK.ORCID 0000-0001-8837-4928
Anirban MaitraRoyal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester, UK.
Francis J GilchristAcademic Department of Child Health, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK.ORCID 0000-0002-1947-7621
Cystic Fibrosis Trust · GBManchester Academic Health Science Centre · GBManchester University NHS Foundation Trust · GBCentre for Inflammation Research · GBChildren's Hospital at Westmead · AUIndiana University School of MedicineUniversity Hospitals of North Midlands NHS Trust · GBUniversity of Manchester · GB

Funding

Department of Health NIHRCS012-13Wellcome Trust 207504/B/17/Z
6 · The paper itself

Abstract

backgroundLung clearance index (LCI) is a valuable research tool in cystic fibrosis (CF) but clinical application has been limited by technical challenges and uncertainty about how to interpret longitudinal change. In order to help inform clinical practice, this study aimed to assess feasibility, repeatability and longitudinal LCI change in children and adults with CF with predominantly mild baseline disease.

methodsProspective, 3-year, multicentre, observational study of repeated LCI measurement at time of clinical review in patients with CF >5 years, delivered using a rapid wash-in system.

results112 patients completed at least one LCI assessment and 98 (90%) were still under follow-up at study end. The median (IQR) age was 14.7 (8.6-22.2) years and the mean (SD) FEV

conclusionsMost patients with CF with well-preserved lung function show stable LCI over time. Cluster behaviours can be identified and baseline LCI is a risk factor for future progression. These results support the use of LCI in clinical practice in identifying patients at risk of lung function decline.

Indexed as

Cystic FibrosisAdolescentAdultChildDisease ProgressionForced Expiratory VolumeHumansLungProspective StudiesYoung Adultcystic fibrosislung physiology

Identifiers

PMID34301741
PMCPMC8938654
OpenAlexW3185357748

What OpenQuestion holds

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LicenceCC BY
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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.