Evidence map›Paper›PMID 24072358›Full record

Observational studyThorax2014

Evolution of lung function during the first year of life in newborn screened cystic fibrosis infants.

The Thanh-Diem Nguyen, Lena P Thia, Ah-Fong Hoo, Andrew Bush, Paul Aurora, Angie Wade, Jane Chudleigh, Sooky Lum, Janet Stocks, London Cystic Fibrosis Collaboration (LCFC)

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Thorax, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. Trial
  2. Infant lung function tests as endpoints in the ISIS multicenter clinical trial in cystic fibrosis.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2016
    Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Pulmonary function testing in children's interstitial lung disease.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  16. The future of cystic fibrosis care: a global perspective.The Lancet. Respiratory medicine · 2020
    Review
  17. AGTR2 absence or antagonism prevents cystic fibrosis pulmonary manifestations.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2019
    Article
  18. Article
  19. Best practices in the treatment of early cystic fibrosis lung disease.Therapeutic advances in respiratory disease · 2017
    Review
  20. Early pulmonary disease manifestations in cystic fibrosis mice.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2016
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

The Thanh-Diem NguyenPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK Department of Respiratory Medicine, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Quebec, Canada.
Lena P ThiaPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK.
Ah-Fong HooPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK Respiratory Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
Andrew BushDepartment of Paediatric Respiratory Medicine, Imperial College & Royal Brompton & Harefield Hospital NHS Foundation Trust, London, UK.
Paul AuroraPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK Respiratory Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
Angie WadeCentre for Paediatric Epidemiology and Biostatistics, UCL Institute of Child Health, MRC Centre for Epidemiology of Child Health, London, UK.
Jane ChudleighPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK Respiratory Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
Sooky LumPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK.
Janet StocksPortex Unit: Respiratory Physiology and Medicine, UCL Institute of Child Health, London, UK.
London Cystic Fibrosis Collaboration (LCFC)

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleNewborn screening (NBS) for cystic fibrosis (CF) allows early intervention. Design of randomised controlled trials (RCT) is currently impeded by uncertainty regarding evolution of lung function, an important trial end point in such infants.

objectiveTo assess changes in pulmonary function during the first year of life in CF NBS infants.

methodsObservational longitudinal study. CF NBS infants and healthy controls were recruited between 2009 and 2011. Lung Clearance Index (LCI), plethysmographic lung volume (plethysmographic functional residual capacity (FRCpleth)) and forced expired volume (FEV₀.₅) were measured at 3 months and 1 year of age. MAIN

resultsPaired measurements were obtained from 72 CF infants and 44 controls. At 3 months, CF infants had significantly worse lung function for all tests. FEV₀.₅ improved significantly (0.59 (95% CI 0.18 to 0.99) z-scores; p<0.01) in CF infants between 3 months and 1 year, and by 1 year, FEV₀.₅ was only 0.52 (0.89 to 0.15) z-scores less than in controls. LCI and FRCpleth remained stable throughout the first year of life, being on average 0.8 z-scores higher in infants with CF. Pulmonary function at 1 year was predicted by that at 3 months. Among the 45 CF infants with entirely normal LCI and FEV₀.₅ at 3 months, 80% remained so at 1 year, while 74% of those with early abnormalities remained abnormal at 1 year.

conclusionsThis is the first study reporting improvements in FEV₀.₅ over time in stable NBS CF infants treated with standard therapy. Milder changes in lung function occurred by 1 year than previously reported. Lung function at 3 months predicts a high-risk group, who should be considered for intensification of treatment and enrolment into RCTs.

Indexed as

Cystic FibrosisDisease ProgressionFemaleFollow-Up StudiesGestational AgeHumansInfantInfant, NewbornLung Volume MeasurementsMaleMaximal Midexpiratory Flow RateNeonatal ScreeningPredictive Value of TestsPrevalenceRespiratory Function TestsRetrospective StudiesCystic FibrosisLung PhysiologyPaediatric Lung Disaese

Identifiers

PMID24072358
PMCPMC4174068

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.